|
Revision tags: v6.15, v6.15-rc7, v6.15-rc6, v6.15-rc5, v6.15-rc4, v6.15-rc3, v6.15-rc2, v6.15-rc1, v6.14 |
|
| #
2cbb20b0 |
| 21-Mar-2025 |
Josh Poimboeuf <[email protected]> |
tracing: Disable branch profiling in noinstr code
CONFIG_TRACE_BRANCH_PROFILING inserts a call to ftrace_likely_update() for each use of likely() or unlikely(). That breaks noinstr rules if the aff
tracing: Disable branch profiling in noinstr code
CONFIG_TRACE_BRANCH_PROFILING inserts a call to ftrace_likely_update() for each use of likely() or unlikely(). That breaks noinstr rules if the affected function is annotated as noinstr.
Disable branch profiling for files with noinstr functions. In addition to some individual files, this also includes the entire arch/x86 subtree, as well as the kernel/entry, drivers/cpuidle, and drivers/idle directories, all of which are noinstr-heavy.
Due to the nature of how sched binaries are built by combining multiple .c files into one, branch profiling is disabled more broadly across the sched code than would otherwise be needed.
This fixes many warnings like the following:
vmlinux.o: warning: objtool: do_syscall_64+0x40: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: __rdgsbase_inactive+0x33: call to ftrace_likely_update() leaves .noinstr.text section vmlinux.o: warning: objtool: handle_bug.isra.0+0x198: call to ftrace_likely_update() leaves .noinstr.text section ...
Reported-by: Ingo Molnar <[email protected]> Suggested-by: Steven Rostedt <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Cc: Linus Torvalds <[email protected]> Link: https://lore.kernel.org/r/fb94fc9303d48a5ed370498f54500cc4c338eb6d.1742586676.git.jpoimboe@kernel.org
show more ...
|
|
Revision tags: v6.14-rc7, v6.14-rc6, v6.14-rc5, v6.14-rc4, v6.14-rc3, v6.14-rc2, v6.14-rc1, v6.13, v6.13-rc7, v6.13-rc6, v6.13-rc5, v6.13-rc4, v6.13-rc3, v6.13-rc2, v6.13-rc1, v6.12, v6.12-rc7, v6.12-rc6, v6.12-rc5, v6.12-rc4, v6.12-rc3, v6.12-rc2, v6.12-rc1, v6.11, v6.11-rc7, v6.11-rc6, v6.11-rc5, v6.11-rc4, v6.11-rc3, v6.11-rc2, v6.11-rc1, v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2, v6.10-rc1, v6.9, v6.9-rc7, v6.9-rc6, v6.9-rc5, v6.9-rc4, v6.9-rc3, v6.9-rc2 |
|
| #
3f1a9bc5 |
| 30-Mar-2024 |
Masahiro Yamada <[email protected]> |
x86/build: Use obj-y to descend into arch/x86/virt/
Commit c33621b4c5ad ("x86/virt/tdx: Wire up basic SEAMCALL functions") introduced a new instance of core-y instead of the standardized obj-y synta
x86/build: Use obj-y to descend into arch/x86/virt/
Commit c33621b4c5ad ("x86/virt/tdx: Wire up basic SEAMCALL functions") introduced a new instance of core-y instead of the standardized obj-y syntax.
X86 Makefiles descend into subdirectories of arch/x86/virt inconsistently; into arch/x86/virt/ via core-y defined in arch/x86/Makefile, but into arch/x86/virt/svm/ via obj-y defined in arch/x86/Kbuild.
This is problematic when you build a single object in parallel because multiple threads attempt to build the same file.
$ make -j$(nproc) arch/x86/virt/vmx/tdx/seamcall.o [ snip ] AS arch/x86/virt/vmx/tdx/seamcall.o AS arch/x86/virt/vmx/tdx/seamcall.o fixdep: error opening file: arch/x86/virt/vmx/tdx/.seamcall.o.d: No such file or directory make[4]: *** [scripts/Makefile.build:362: arch/x86/virt/vmx/tdx/seamcall.o] Error 2
Use the obj-y syntax, as it works correctly.
Signed-off-by: Masahiro Yamada <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected]
show more ...
|
|
Revision tags: v6.9-rc1, v6.8, v6.8-rc7, v6.8-rc6, v6.8-rc5, v6.8-rc4, v6.8-rc3, v6.8-rc2 |
|
| #
216d106c |
| 26-Jan-2024 |
Brijesh Singh <[email protected]> |
x86/sev: Add SEV-SNP host initialization support
The memory integrity guarantees of SEV-SNP are enforced through a new structure called the Reverse Map Table (RMP). The RMP is a single data structur
x86/sev: Add SEV-SNP host initialization support
The memory integrity guarantees of SEV-SNP are enforced through a new structure called the Reverse Map Table (RMP). The RMP is a single data structure shared across the system that contains one entry for every 4K page of DRAM that may be used by SEV-SNP VMs. The APM Volume 2 section on Secure Nested Paging (SEV-SNP) details a number of steps needed to detect/enable SEV-SNP and RMP table support on the host:
- Detect SEV-SNP support based on CPUID bit - Initialize the RMP table memory reported by the RMP base/end MSR registers and configure IOMMU to be compatible with RMP access restrictions - Set the MtrrFixDramModEn bit in SYSCFG MSR - Set the SecureNestedPagingEn and VMPLEn bits in the SYSCFG MSR - Configure IOMMU
RMP table entry format is non-architectural and it can vary by processor. It is defined by the PPR document for each respective CPU family. Restrict SNP support to CPU models/families which are compatible with the current RMP table entry format to guard against any undefined behavior when running on other system types. Future models/support will handle this through an architectural mechanism to allow for broader compatibility.
SNP host code depends on CONFIG_KVM_AMD_SEV config flag which may be enabled even when CONFIG_AMD_MEM_ENCRYPT isn't set, so update the SNP-specific IOMMU helpers used here to rely on CONFIG_KVM_AMD_SEV instead of CONFIG_AMD_MEM_ENCRYPT.
Signed-off-by: Brijesh Singh <[email protected]> Co-developed-by: Ashish Kalra <[email protected]> Signed-off-by: Ashish Kalra <[email protected]> Co-developed-by: Tom Lendacky <[email protected]> Signed-off-by: Tom Lendacky <[email protected]> Co-developed-by: Borislav Petkov (AMD) <[email protected]> Signed-off-by: Borislav Petkov (AMD) <[email protected]> Co-developed-by: Michael Roth <[email protected]> Signed-off-by: Michael Roth <[email protected]> Link: https://lore.kernel.org/r/[email protected]
show more ...
|
|
Revision tags: v6.8-rc1, v6.7, v6.7-rc8, v6.7-rc7, v6.7-rc6, v6.7-rc5, v6.7-rc4, v6.7-rc3, v6.7-rc2, v6.7-rc1, v6.6, v6.6-rc7, v6.6-rc6, v6.6-rc5, v6.6-rc4, v6.6-rc3, v6.6-rc2, v6.6-rc1, v6.5, v6.5-rc7, v6.5-rc6, v6.5-rc5, v6.5-rc4, v6.5-rc3, v6.5-rc2, v6.5-rc1, v6.4, v6.4-rc7, v6.4-rc6, v6.4-rc5, v6.4-rc4, v6.4-rc3, v6.4-rc2, v6.4-rc1, v6.3, v6.3-rc7, v6.3-rc6, v6.3-rc5, v6.3-rc4, v6.3-rc3, v6.3-rc2, v6.3-rc1, v6.2, v6.2-rc8, v6.2-rc7, v6.2-rc6, v6.2-rc5, v6.2-rc4, v6.2-rc3, v6.2-rc2, v6.2-rc1, v6.1, v6.1-rc8, v6.1-rc7, v6.1-rc6, v6.1-rc5, v6.1-rc4, v6.1-rc3, v6.1-rc2, v6.1-rc1, v6.0, v6.0-rc7, v6.0-rc6, v6.0-rc5, v6.0-rc4, v6.0-rc3, v6.0-rc2, v6.0-rc1, v5.19, v5.19-rc8, v5.19-rc7, v5.19-rc6, v5.19-rc5, v5.19-rc4, v5.19-rc3, v5.19-rc2, v5.19-rc1, v5.18, v5.18-rc7, v5.18-rc6, v5.18-rc5, v5.18-rc4, v5.18-rc3, v5.18-rc2, v5.18-rc1, v5.17, v5.17-rc8, v5.17-rc7, v5.17-rc6 |
|
| #
61983110 |
| 22-Feb-2022 |
Kirill A. Shutemov <[email protected]> |
x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}
Move cc_platform.c to arch/x86/coco/. The directory is going to be the home space for code related to confidential computing.
Intel TDX c
x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}
Move cc_platform.c to arch/x86/coco/. The directory is going to be the home space for code related to confidential computing.
Intel TDX code will land here. AMD SEV code will also eventually be moved there.
No functional changes.
Signed-off-by: Kirill A. Shutemov <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Reviewed-by: Tom Lendacky <[email protected]> Link: https://lore.kernel.org/r/[email protected]
show more ...
|
|
Revision tags: v5.17-rc5, v5.17-rc4, v5.17-rc3, v5.17-rc2, v5.17-rc1, v5.16, v5.16-rc8, v5.16-rc7, v5.16-rc6, v5.16-rc5, v5.16-rc4, v5.16-rc3, v5.16-rc2, v5.16-rc1, v5.15, v5.15-rc7, v5.15-rc6 |
|
| #
8212f898 |
| 13-Oct-2021 |
Masahiro Yamada <[email protected]> |
kbuild: use more subdir- for visiting subdirectories while cleaning
Documentation/kbuild/makefiles.rst suggests to use "archclean" for cleaning arch/$(SRCARCH)/boot/, but it is not a hard requiremen
kbuild: use more subdir- for visiting subdirectories while cleaning
Documentation/kbuild/makefiles.rst suggests to use "archclean" for cleaning arch/$(SRCARCH)/boot/, but it is not a hard requirement.
Since commit d92cc4d51643 ("kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for all architectures. This can take advantage of the parallel option (-j) for "make clean".
I also cleaned up the comments in arch/$(SRCARCH)/Makefile. The "archdep" target no longer exists.
Signed-off-by: Masahiro Yamada <[email protected]> Reviewed-by: Kees Cook <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc)
show more ...
|
|
Revision tags: v5.15-rc5, v5.15-rc4, v5.15-rc3, v5.15-rc2, v5.15-rc1, v5.14, v5.14-rc7, v5.14-rc6, v5.14-rc5, v5.14-rc4, v5.14-rc3, v5.14-rc2, v5.14-rc1, v5.13, v5.13-rc7, v5.13-rc6, v5.13-rc5, v5.13-rc4, v5.13-rc3, v5.13-rc2, v5.13-rc1, v5.12, v5.12-rc8, v5.12-rc7, v5.12-rc6, v5.12-rc5, v5.12-rc4, v5.12-rc3, v5.12-rc2, v5.12-rc1, v5.12-rc1-dontuse, v5.11, v5.11-rc7, v5.11-rc6, v5.11-rc5, v5.11-rc4, v5.11-rc3, v5.11-rc2, v5.11-rc1, v5.10, v5.10-rc7, v5.10-rc6, v5.10-rc5, v5.10-rc4, v5.10-rc3, v5.10-rc2, v5.10-rc1, v5.9, v5.9-rc8, v5.9-rc7, v5.9-rc6, v5.9-rc5, v5.9-rc4, v5.9-rc3, v5.9-rc2, v5.9-rc1, v5.8, v5.8-rc7, v5.8-rc6, v5.8-rc5, v5.8-rc4, v5.8-rc3, v5.8-rc2, v5.8-rc1, v5.7, v5.7-rc7, v5.7-rc6, v5.7-rc5, v5.7-rc4, v5.7-rc3, v5.7-rc2, v5.7-rc1, v5.6, v5.6-rc7, v5.6-rc6, v5.6-rc5, v5.6-rc4, v5.6-rc3, v5.6-rc2, v5.6-rc1, v5.5, v5.5-rc7, v5.5-rc6, v5.5-rc5, v5.5-rc4, v5.5-rc3, v5.5-rc2, v5.5-rc1, v5.4, v5.4-rc8, v5.4-rc7, v5.4-rc6, v5.4-rc5, v5.4-rc4, v5.4-rc3, v5.4-rc2, v5.4-rc1, v5.3, v5.3-rc8, v5.3-rc7, v5.3-rc6, v5.3-rc5, v5.3-rc4, v5.3-rc3, v5.3-rc2, v5.3-rc1, v5.2, v5.2-rc7, v5.2-rc6, v5.2-rc5, v5.2-rc4, v5.2-rc3 |
|
| #
96ac6d43 |
| 30-May-2019 |
Greg Kroah-Hartman <[email protected]> |
treewide: Add SPDX license identifier - Kbuild
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license,
treewide: Add SPDX license identifier - Kbuild
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is:
GPL-2.0
Reported-by: Masahiro Yamada <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
show more ...
|
|
Revision tags: v5.2-rc2, v5.2-rc1, v5.1, v5.1-rc7, v5.1-rc6, v5.1-rc5, v5.1-rc4, v5.1-rc3, v5.1-rc2, v5.1-rc1, v5.0, v5.0-rc8, v5.0-rc7, v5.0-rc6, v5.0-rc5, v5.0-rc4, v5.0-rc3, v5.0-rc2, v5.0-rc1, v4.20, v4.20-rc7 |
|
| #
716ff017 |
| 10-Dec-2018 |
Maran Wilson <[email protected]> |
KVM: x86: Allow Qemu/KVM to use PVH entry point
For certain applications it is desirable to rapidly boot a KVM virtual machine. In cases where legacy hardware and software support within the guest i
KVM: x86: Allow Qemu/KVM to use PVH entry point
For certain applications it is desirable to rapidly boot a KVM virtual machine. In cases where legacy hardware and software support within the guest is not needed, Qemu should be able to boot directly into the uncompressed Linux kernel binary without the need to run firmware.
There already exists an ABI to allow this for Xen PVH guests and the ABI is supported by Linux and FreeBSD:
https://xenbits.xen.org/docs/unstable/misc/pvh.html
This patch enables Qemu to use that same entry point for booting KVM guests.
Signed-off-by: Maran Wilson <[email protected]> Suggested-by: Konrad Rzeszutek Wilk <[email protected]> Suggested-by: Boris Ostrovsky <[email protected]> Tested-by: Boris Ostrovsky <[email protected]> Reviewed-by: Juergen Gross <[email protected]> Signed-off-by: Boris Ostrovsky <[email protected]>
show more ...
|
| #
fcd47476 |
| 10-Dec-2018 |
Maran Wilson <[email protected]> |
xen/pvh: Move PVH entry code out of Xen specific tree
Once hypervisors other than Xen start using the PVH entry point for starting VMs, we would like the option of being able to compile PVH entry ca
xen/pvh: Move PVH entry code out of Xen specific tree
Once hypervisors other than Xen start using the PVH entry point for starting VMs, we would like the option of being able to compile PVH entry capable kernels without enabling CONFIG_XEN and all the code that comes along with that. To allow that, we are moving the PVH code out of Xen and into files sitting at a higher level in the tree.
This patch is not introducing any code or functional changes, just moving files from one location to another.
Signed-off-by: Maran Wilson <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]> Reviewed-by: Juergen Gross <[email protected]> Signed-off-by: Boris Ostrovsky <[email protected]>
show more ...
|
|
Revision tags: v4.20-rc6, v4.20-rc5, v4.20-rc4, v4.20-rc3, v4.20-rc2, v4.20-rc1, v4.19, v4.19-rc8, v4.19-rc7, v4.19-rc6, v4.19-rc5, v4.19-rc4, v4.19-rc3, v4.19-rc2, v4.19-rc1, v4.18, v4.18-rc8, v4.18-rc7, v4.18-rc6, v4.18-rc5, v4.18-rc4, v4.18-rc3, v4.18-rc2, v4.18-rc1, v4.17, v4.17-rc7, v4.17-rc6, v4.17-rc5, v4.17-rc4, v4.17-rc3, v4.17-rc2, v4.17-rc1, v4.16, v4.16-rc7, v4.16-rc6, v4.16-rc5, v4.16-rc4, v4.16-rc3, v4.16-rc2, v4.16-rc1, v4.15, v4.15-rc9, v4.15-rc8, v4.15-rc7, v4.15-rc6, v4.15-rc5, v4.15-rc4, v4.15-rc3, v4.15-rc2, v4.15-rc1, v4.14, v4.14-rc8, v4.14-rc7, v4.14-rc6, v4.14-rc5, v4.14-rc4, v4.14-rc3, v4.14-rc2, v4.14-rc1, v4.13, v4.13-rc7, v4.13-rc6 |
|
| #
ecda85e7 |
| 16-Aug-2017 |
Juergen Gross <[email protected]> |
x86/lguest: Remove lguest support
Lguest seems to be rather unused these days. It has seen only patches ensuring it still builds the last two years and its official state is "Odd Fixes".
Remove it
x86/lguest: Remove lguest support
Lguest seems to be rather unused these days. It has seen only patches ensuring it still builds the last two years and its official state is "Odd Fixes".
Remove it in order to be able to clean up the paravirt code.
Signed-off-by: Juergen Gross <[email protected]> Acked-by: Rusty Russell <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
show more ...
|
|
Revision tags: v4.13-rc5, v4.13-rc4 |
|
| #
79cadff2 |
| 02-Aug-2017 |
Vitaly Kuznetsov <[email protected]> |
x86/hyper-v: Include hyperv/ only when CONFIG_HYPERV is set
Code is arch/x86/hyperv/ is only needed when CONFIG_HYPERV is set, the 'basic' support and detection lives in arch/x86/kernel/cpu/mshyperv
x86/hyper-v: Include hyperv/ only when CONFIG_HYPERV is set
Code is arch/x86/hyperv/ is only needed when CONFIG_HYPERV is set, the 'basic' support and detection lives in arch/x86/kernel/cpu/mshyperv.c which is included when CONFIG_HYPERVISOR_GUEST is set.
Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Reviewed-by: Stephen Hemminger <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Haiyang Zhang <[email protected]> Cc: Jork Loeser <[email protected]> Cc: K. Y. Srinivasan <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Xiao <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
show more ...
|
|
Revision tags: v4.13-rc3, v4.13-rc2 |
|
| #
91c17449 |
| 20-Jul-2017 |
Greg Kroah-Hartman <[email protected]> |
Revert "x86/hyper-v: include hyperv/ only when CONFIG_HYPERV is set"
This reverts commit 2e252fbf777d3b1250b63a5bf45e2ac1932687d3 as it is obviously not correct.
And it should have gone in through
Revert "x86/hyper-v: include hyperv/ only when CONFIG_HYPERV is set"
This reverts commit 2e252fbf777d3b1250b63a5bf45e2ac1932687d3 as it is obviously not correct.
And it should have gone in through the x86 tree :(
Reported-by: Colin King <[email protected]> Reported-by: Ingo Molnar <[email protected]> Reported-by: Stephen Rothwell <[email protected]> Cc: Vitaly Kuznetsov <[email protected]> Cc: Andy Shevchenko <[email protected]> Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
show more ...
|
|
Revision tags: v4.13-rc1, v4.12, v4.12-rc7 |
|
| #
2e252fbf |
| 25-Jun-2017 |
Vitaly Kuznetsov <[email protected]> |
x86/hyper-v: include hyperv/ only when CONFIG_HYPERV is set
Code is arch/x86/hyperv/ is only needed when CONFIG_HYPERV is set, the 'basic' support and detection lives in arch/x86/kernel/cpu/mshyperv
x86/hyper-v: include hyperv/ only when CONFIG_HYPERV is set
Code is arch/x86/hyperv/ is only needed when CONFIG_HYPERV is set, the 'basic' support and detection lives in arch/x86/kernel/cpu/mshyperv.c which is included when CONFIG_HYPERVISOR_GUEST is set.
Signed-off-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
show more ...
|
|
Revision tags: v4.12-rc6, v4.12-rc5, v4.12-rc4, v4.12-rc3, v4.12-rc2, v4.12-rc1, v4.11, v4.11-rc8, v4.11-rc7, v4.11-rc6, v4.11-rc5, v4.11-rc4, v4.11-rc3, v4.11-rc2, v4.11-rc1, v4.10, v4.10-rc8, v4.10-rc7, v4.10-rc6, v4.10-rc5 |
|
| #
8730046c |
| 18-Jan-2017 |
K. Y. Srinivasan <[email protected]> |
Drivers: hv vmbus: Move Hypercall page setup out of common code
As part of the effort to separate out architecture specific code, move the hypercall page setup to an architecture specific file.
Sig
Drivers: hv vmbus: Move Hypercall page setup out of common code
As part of the effort to separate out architecture specific code, move the hypercall page setup to an architecture specific file.
Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
show more ...
|
|
Revision tags: v4.10-rc4, v4.10-rc3, v4.10-rc2, v4.10-rc1, v4.9, v4.9-rc8, v4.9-rc7, v4.9-rc6, v4.9-rc5, v4.9-rc4, v4.9-rc3, v4.9-rc2, v4.9-rc1, v4.8, v4.8-rc8, v4.8-rc7, v4.8-rc6, v4.8-rc5, v4.8-rc4, v4.8-rc3, v4.8-rc2, v4.8-rc1, v4.7, v4.7-rc7, v4.7-rc6, v4.7-rc5, v4.7-rc4, v4.7-rc3, v4.7-rc2, v4.7-rc1, v4.6, v4.6-rc7, v4.6-rc6, v4.6-rc5, v4.6-rc4, v4.6-rc3, v4.6-rc2, v4.6-rc1, v4.5, v4.5-rc7, v4.5-rc6, v4.5-rc5, v4.5-rc4 |
|
| #
fa9cbf32 |
| 08-Feb-2016 |
Borislav Petkov <[email protected]> |
perf/x86: Move perf_event.c ............... => x86/events/core.c
Also, keep the churn at minimum by adjusting the include "perf_event.h" when each file gets moved.
Signed-off-by: Borislav Petkov <b
perf/x86: Move perf_event.c ............... => x86/events/core.c
Also, keep the churn at minimum by adjusting the include "perf_event.h" when each file gets moved.
Signed-off-by: Borislav Petkov <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Vince Weaver <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
show more ...
|
|
Revision tags: v4.5-rc3, v4.5-rc2, v4.5-rc1, v4.4, v4.4-rc8, v4.4-rc7, v4.4-rc6, v4.4-rc5, v4.4-rc4, v4.4-rc3, v4.4-rc2, v4.4-rc1, v4.3, v4.3-rc7, v4.3-rc6, v4.3-rc5, v4.3-rc4, v4.3-rc3, v4.3-rc2, v4.3-rc1, v4.2, v4.2-rc8, v4.2-rc7, v4.2-rc6, v4.2-rc5, v4.2-rc4, v4.2-rc3, v4.2-rc2, v4.2-rc1, v4.1, v4.1-rc8, v4.1-rc7 |
|
| #
d603c8e1 |
| 03-Jun-2015 |
Ingo Molnar <[email protected]> |
x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/
Cc: Borislav Petkov <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Thoma
x86/asm/entry, x86/vdso: Move the vDSO code to arch/x86/entry/vdso/
Cc: Borislav Petkov <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]>
show more ...
|
| #
905a36a2 |
| 03-Jun-2015 |
Ingo Molnar <[email protected]> |
x86/asm/entry: Move entry_64.S and entry_32.S to arch/x86/entry/
Create a new directory hierarchy for the low level x86 entry code:
arch/x86/entry/*
This will host all the low level glue that
x86/asm/entry: Move entry_64.S and entry_32.S to arch/x86/entry/
Create a new directory hierarchy for the low level x86 entry code:
arch/x86/entry/*
This will host all the low level glue that is currently scattered all across arch/x86/.
Start with entry_64.S and entry_32.S.
Cc: Borislav Petkov <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]>
show more ...
|
|
Revision tags: v4.1-rc6, v4.1-rc5, v4.1-rc4, v4.1-rc3, v4.1-rc2, v4.1-rc1, v4.0, v4.0-rc7, v4.0-rc6, v4.0-rc5, v4.0-rc4, v4.0-rc3, v4.0-rc2, v4.0-rc1, v3.19, v3.19-rc7, v3.19-rc6, v3.19-rc5, v3.19-rc4, v3.19-rc3, v3.19-rc2, v3.19-rc1, v3.18, v3.18-rc7, v3.18-rc6, v3.18-rc5, v3.18-rc4, v3.18-rc3, v3.18-rc2, v3.18-rc1, v3.17, v3.17-rc7, v3.17-rc6, v3.17-rc5, v3.17-rc4, v3.17-rc3 |
|
| #
74ca317c |
| 29-Aug-2014 |
Vivek Goyal <[email protected]> |
kexec: create a new config option CONFIG_KEXEC_FILE for new syscall
Currently new system call kexec_file_load() and all the associated code compiles if CONFIG_KEXEC=y. But new syscall also compiles
kexec: create a new config option CONFIG_KEXEC_FILE for new syscall
Currently new system call kexec_file_load() and all the associated code compiles if CONFIG_KEXEC=y. But new syscall also compiles purgatory code which currently uses gcc option -mcmodel=large. This option seems to be available only gcc 4.4 onwards.
Hiding new functionality behind a new config option will not break existing users of old gcc. Those who wish to enable new functionality will require new gcc. Having said that, I am trying to figure out how can I move away from using -mcmodel=large but that can take a while.
I think there are other advantages of introducing this new config option. As this option will be enabled only on x86_64, other arches don't have to compile generic kexec code which will never be used. This new code selects CRYPTO=y and CRYPTO_SHA256=y. And all other arches had to do this for CONFIG_KEXEC. Now with introduction of new config option, we can remove crypto dependency from other arches.
Now CONFIG_KEXEC_FILE is available only on x86_64. So whereever I had CONFIG_X86_64 defined, I got rid of that.
For CONFIG_KEXEC_FILE, instead of doing select CRYPTO=y, I changed it to "depends on CRYPTO=y". This should be safer as "select" is not recursive.
Signed-off-by: Vivek Goyal <[email protected]> Cc: Eric Biederman <[email protected]> Cc: H. Peter Anvin <[email protected]> Tested-by: Shaun Ruffell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
show more ...
|
|
Revision tags: v3.17-rc2, v3.17-rc1 |
|
| #
8fc5b4d4 |
| 08-Aug-2014 |
Vivek Goyal <[email protected]> |
purgatory: core purgatory functionality
Create a stand alone relocatable object purgatory which runs between two kernels. This name, concept and some code has been taken from kexec-tools. Idea is
purgatory: core purgatory functionality
Create a stand alone relocatable object purgatory which runs between two kernels. This name, concept and some code has been taken from kexec-tools. Idea is that this code runs after a crash and it runs in minimal environment. So keep it separate from rest of the kernel and in long term we will have to practically do no maintenance of this code.
This code also has the logic to do verify sha256 hashes of various segments which have been loaded into memory. So first we verify that the kernel we are jumping to is fine and has not been corrupted and make progress only if checsums are verified.
This code also takes care of copying some memory contents to backup region.
[[email protected]: run host built programs from objtree] Signed-off-by: Vivek Goyal <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Michael Kerrisk <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Eric Biederman <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Matthew Garrett <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Dave Young <[email protected]> Cc: WANG Chao <[email protected]> Cc: Baoquan He <[email protected]> Cc: Andy Lutomirski <[email protected]> Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
show more ...
|
|
Revision tags: v3.16, v3.16-rc7, v3.16-rc6, v3.16-rc5, v3.16-rc4, v3.16-rc3, v3.16-rc2, v3.16-rc1, v3.15, v3.15-rc8, v3.15-rc7, v3.15-rc6, v3.15-rc5, v3.15-rc4, v3.15-rc3, v3.15-rc2, v3.15-rc1, v3.14, v3.14-rc8, v3.14-rc7, v3.14-rc6, v3.14-rc5, v3.14-rc4, v3.14-rc3, v3.14-rc2, v3.14-rc1, v3.13, v3.13-rc8, v3.13-rc7, v3.13-rc6, v3.13-rc5, v3.13-rc4, v3.13-rc3, v3.13-rc2, v3.13-rc1, v3.12, v3.12-rc7, v3.12-rc6, v3.12-rc5, v3.12-rc4, v3.12-rc3, v3.12-rc2, v3.12-rc1, v3.11, v3.11-rc7, v3.11-rc6, v3.11-rc5, v3.11-rc4, v3.11-rc3, v3.11-rc2, v3.11-rc1, v3.10, v3.10-rc7, v3.10-rc6, v3.10-rc5, v3.10-rc4, v3.10-rc3, v3.10-rc2, v3.10-rc1, v3.9, v3.9-rc8, v3.9-rc7, v3.9-rc6, v3.9-rc5, v3.9-rc4, v3.9-rc3, v3.9-rc2, v3.9-rc1, v3.8, v3.8-rc7, v3.8-rc6, v3.8-rc5, v3.8-rc4, v3.8-rc3, v3.8-rc2, v3.8-rc1, v3.7, v3.7-rc8, v3.7-rc7, v3.7-rc6, v3.7-rc5, v3.7-rc4, v3.7-rc3, v3.7-rc2, v3.7-rc1, v3.6, v3.6-rc7, v3.6-rc6, v3.6-rc5, v3.6-rc4, v3.6-rc3, v3.6-rc2, v3.6-rc1, v3.5, v3.5-rc7, v3.5-rc6, v3.5-rc5, v3.5-rc4, v3.5-rc3, v3.5-rc2, v3.5-rc1, v3.4, v3.4-rc7 |
|
| #
b3266bd6 |
| 08-May-2012 |
Jarkko Sakkinen <[email protected]> |
x86, realmode: realmode.bin infrastructure
Create realmode.bin and realmode.relocs files. Piggy pack them into relocatable object that will be included into .init.data section of the main kernel ima
x86, realmode: realmode.bin infrastructure
Create realmode.bin and realmode.relocs files. Piggy pack them into relocatable object that will be included into .init.data section of the main kernel image.
The first file includes binary image of the real-mode code. The latter file includes all relocations. The layout of the binary image is specified in realmode.lds.S. The makefile generates pa_ prefixed symbols for each exported global. These are used in 32-bit code and in realmode header to define symbols that need to be relocated.
Signed-off-by: Jarkko Sakkinen <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Originally-by: H. Peter Anvin <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
show more ...
|
|
Revision tags: v3.4-rc6, v3.4-rc5, v3.4-rc4, v3.4-rc3, v3.4-rc2, v3.4-rc1, v3.3, v3.3-rc7, v3.3-rc6, v3.3-rc5, v3.3-rc4, v3.3-rc3, v3.3-rc2, v3.3-rc1, v3.2, v3.2-rc7, v3.2-rc6, v3.2-rc5, v3.2-rc4, v3.2-rc3, v3.2-rc2, v3.2-rc1, v3.1, v3.1-rc10, v3.1-rc9, v3.1-rc8, v3.1-rc7, v3.1-rc6, v3.1-rc5, v3.1-rc4, v3.1-rc3, v3.1-rc2, v3.1-rc1, v3.0, v3.0-rc7, v3.0-rc6, v3.0-rc5, v3.0-rc4, v3.0-rc3, v3.0-rc2, v3.0-rc1, v2.6.39, v2.6.39-rc7, v2.6.39-rc6, v2.6.39-rc5 |
|
| #
0a14842f |
| 20-Apr-2011 |
Eric Dumazet <[email protected]> |
net: filter: Just In Time compiler for x86-64
In order to speedup packet filtering, here is an implementation of a JIT compiler for x86_64
It is disabled by default, and must be enabled by the admi
net: filter: Just In Time compiler for x86-64
In order to speedup packet filtering, here is an implementation of a JIT compiler for x86_64
It is disabled by default, and must be enabled by the admin.
echo 1 >/proc/sys/net/core/bpf_jit_enable
It uses module_alloc() and module_free() to get memory in the 2GB text kernel range since we call helpers functions from the generated code.
EAX : BPF A accumulator EBX : BPF X accumulator RDI : pointer to skb (first argument given to JIT function) RBP : frame pointer (even if CONFIG_FRAME_POINTER=n) r9d : skb->len - skb->data_len (headlen) r8 : skb->data
To get a trace of generated code, use :
echo 2 >/proc/sys/net/core/bpf_jit_enable
Example of generated code :
# tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24
flen=18 proglen=147 pass=3 image=ffffffffa00b5000 JIT code: ffffffffa00b5000: 55 48 89 e5 48 83 ec 60 48 89 5d f8 44 8b 4f 60 JIT code: ffffffffa00b5010: 44 2b 4f 64 4c 8b 87 b8 00 00 00 be 0c 00 00 00 JIT code: ffffffffa00b5020: e8 24 7b f7 e0 3d 00 08 00 00 75 28 be 1a 00 00 JIT code: ffffffffa00b5030: 00 e8 fe 7a f7 e0 24 00 3d 00 14 a8 c0 74 49 be JIT code: ffffffffa00b5040: 1e 00 00 00 e8 eb 7a f7 e0 24 00 3d 00 14 a8 c0 JIT code: ffffffffa00b5050: 74 36 eb 3b 3d 06 08 00 00 74 07 3d 35 80 00 00 JIT code: ffffffffa00b5060: 75 2d be 1c 00 00 00 e8 c8 7a f7 e0 24 00 3d 00 JIT code: ffffffffa00b5070: 14 a8 c0 74 13 be 26 00 00 00 e8 b5 7a f7 e0 24 JIT code: ffffffffa00b5080: 00 3d 00 14 a8 c0 75 07 b8 ff ff 00 00 eb 02 31 JIT code: ffffffffa00b5090: c0 c9 c3
BPF program is 144 bytes long, so native program is almost same size ;)
(000) ldh [12] (001) jeq #0x800 jt 2 jf 8 (002) ld [26] (003) and #0xffffff00 (004) jeq #0xc0a81400 jt 16 jf 5 (005) ld [30] (006) and #0xffffff00 (007) jeq #0xc0a81400 jt 16 jf 17 (008) jeq #0x806 jt 10 jf 9 (009) jeq #0x8035 jt 10 jf 17 (010) ld [28] (011) and #0xffffff00 (012) jeq #0xc0a81400 jt 16 jf 13 (013) ld [38] (014) and #0xffffff00 (015) jeq #0xc0a81400 jt 16 jf 17 (016) ret #65535 (017) ret #0
Signed-off-by: Eric Dumazet <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Ben Hutchings <[email protected]> Cc: Hagen Paul Pfeifer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
show more ...
|
|
Revision tags: v2.6.39-rc4, v2.6.39-rc3, v2.6.39-rc2, v2.6.39-rc1, v2.6.38, v2.6.38-rc8, v2.6.38-rc7, v2.6.38-rc6, v2.6.38-rc5, v2.6.38-rc4, v2.6.38-rc3, v2.6.38-rc2, v2.6.38-rc1, v2.6.37, v2.6.37-rc8, v2.6.37-rc7, v2.6.37-rc6, v2.6.37-rc5, v2.6.37-rc4, v2.6.37-rc3, v2.6.37-rc2, v2.6.37-rc1, v2.6.36 |
|
| #
3adbb7f4 |
| 16-Oct-2010 |
Thomas Gleixner <[email protected]> |
x86: Add platform directory
x86 has finally arrived in the embedded nightmare and will rapidly grow SoC platform support in various flavours. So we need a place for the platform support files. That
x86: Add platform directory
x86 has finally arrived in the embedded nightmare and will rapidly grow SoC platform support in various flavours. So we need a place for the platform support files. That also allows us to clean up the dumpground which arch/x86/kernel has become over time.
Signed-off-by: Thomas Gleixner <[email protected]>
show more ...
|
|
Revision tags: v2.6.36-rc8, v2.6.36-rc7, v2.6.36-rc6, v2.6.36-rc5, v2.6.36-rc4, v2.6.36-rc3, v2.6.36-rc2, v2.6.36-rc1, v2.6.35, v2.6.35-rc6, v2.6.35-rc5, v2.6.35-rc4, v2.6.35-rc3, v2.6.35-rc2, v2.6.35-rc1, v2.6.34, v2.6.34-rc7, v2.6.34-rc6, v2.6.34-rc5, v2.6.34-rc4, v2.6.34-rc3, v2.6.34-rc2, v2.6.34-rc1, v2.6.33, v2.6.33-rc8, v2.6.33-rc7, v2.6.33-rc6, v2.6.33-rc5, v2.6.33-rc4, v2.6.33-rc3, v2.6.33-rc2, v2.6.33-rc1, v2.6.32, v2.6.32-rc8, v2.6.32-rc7, v2.6.32-rc6, v2.6.32-rc5, v2.6.32-rc4, v2.6.32-rc3, v2.6.32-rc1, v2.6.32-rc2, v2.6.31, v2.6.31-rc9, v2.6.31-rc8, v2.6.31-rc7, v2.6.31-rc6, v2.6.31-rc5, v2.6.31-rc4, v2.6.31-rc3, v2.6.31-rc2, v2.6.31-rc1, v2.6.30, v2.6.30-rc8, v2.6.30-rc7, v2.6.30-rc6, v2.6.30-rc5, v2.6.30-rc4, v2.6.30-rc3 |
|
| #
d1f0ae5e |
| 15-Apr-2009 |
Sam Ravnborg <[email protected]> |
x86: standardize Kbuild rules
Introducing this Kbuild file allow us to:
make arch/x86/
And thus building all the core part of x86.
Signed-off-by: Sam Ravnborg <[email protected]> Cc: Jaswinder
x86: standardize Kbuild rules
Introducing this Kbuild file allow us to:
make arch/x86/
And thus building all the core part of x86.
Signed-off-by: Sam Ravnborg <[email protected]> Cc: Jaswinder Singh Rajput <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
show more ...
|