H. Peter Anvin (Intel) 92cbbadf73 x86/gsseg: Use the LKGS instruction if available for load_gs_index() ... The LKGS instruction atomically loads a segment descriptor into the %gs descriptor registers, *except* that %gs.base is unchanged, and the base is instead loaded into MSR_IA32_KERNEL_GS_BASE, which is exactly what we want this function to do. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Xin Li <xin3.li@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230112072032.35626-6-xin3.li@intel.com Cc: Andy Lutomirski <luto@kernel.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>		2023-01-13 10:07:27 +01:00
..
mce	x86/mce: Use severity table to handle uncorrected errors in kernel	2022-10-31 17:01:19 +01:00
microcode	- Add support for multiple testing sequences to the Intel In-Field Scan	2022-12-13 15:05:29 -08:00
mtrr	x86/mtrr: Make message for disabled MTRRs more descriptive	2022-12-05 11:08:25 +01:00
resctrl	Driver Core changes for 6.2-rc1	2022-12-16 03:54:54 -08:00
sgx	MM patches for 6.2-rc1.	2022-12-13 19:29:45 -08:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
acrn.c	x86/acrn: Set up timekeeping	2022-08-04 11:11:59 +02:00
amd.c	- Split MTRR and PAT init code to accomodate at least Xen PV and TDX	2022-12-13 14:56:56 -08:00
aperfmperf.c	x86/aperfmperf: Integrate the fallback code from show_cpuinfo()	2022-04-27 20:22:20 +02:00
bugs.c	x86/bugs: Reset speculation control settings on init	2023-01-12 11:37:01 +01:00
cacheinfo.c	x86/cacheinfo: Switch cache_ap_init() to hotplug callback	2022-11-10 13:12:45 +01:00
centaur.c	x86/cpu/centaur: Add Centaur family >=7 CPUs initialization support	2020-09-11 10:53:19 +02:00
common.c	x86/gsseg: Use the LKGS instruction if available for load_gs_index()	2023-01-13 10:07:27 +01:00
cpu.h	x86/cpu: Remove redundant extern x86_read_arch_cap_msr()	2023-01-10 12:40:24 +01:00
cpuid-deps.c	KVM/VMX: Allow exposing EDECCSSA user leaf function to KVM guest	2022-11-04 15:33:56 -07:00
cyrix.c	x86/cyrix: include header linux/isa-dma.h	2022-07-26 14:03:12 -05:00
feat_ctl.c	x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype	2022-09-26 17:06:27 +02:00
hygon.c	- Split MTRR and PAT init code to accomodate at least Xen PV and TDX	2022-12-13 14:56:56 -08:00
hypervisor.c	x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable	2019-07-17 08:09:59 +02:00
intel_epb.c	x86/intel_epb: Set Alder Lake N and Raptor Lake P normal EPB	2022-11-03 11:31:01 -07:00
intel_pconfig.c
intel.c	- Add support for multiple testing sequences to the Intel In-Field Scan	2022-12-13 15:05:29 -08:00
Makefile	x86/cpu: Re-enable stackprotector	2022-10-17 16:40:56 +02:00
match.c	x86/cpu: Add a steppings field to struct x86_cpu_id	2020-04-20 12:19:21 +02:00
mkcapflags.sh	x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*	2020-01-13 18:36:02 +01:00
mshyperv.c	iommu/hyper-v: Allow hyperv irq remapping without x2apic	2022-11-28 16:48:20 +00:00
perfctr-watchdog.c	x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs	2021-06-10 10:04:40 +02:00
powerflags.c
proc.c	x86/aperfmperf: Integrate the fallback code from show_cpuinfo()	2022-04-27 20:22:20 +02:00
rdrand.c	x86/rdrand: Remove "nordrand" flag in favor of "random.trust_cpu"	2022-07-18 15:04:04 +02:00
scattered.c	KVM/VMX: Allow exposing EDECCSSA user leaf function to KVM guest	2022-11-04 15:33:56 -07:00
topology.c	x86/topology: Fix duplicated core ID within a package	2022-10-17 11:58:52 -07:00
transmeta.c
tsx.c	x86/cpu: Remove redundant extern x86_read_arch_cap_msr()	2023-01-10 12:40:24 +01:00
umc.c
umwait.c	KVM: VMX: Stop context switching MSR_IA32_UMWAIT_CONTROL	2020-06-22 20:54:57 -04:00
vmware.c	x86/vmware: Use BIT() macro for shifting	2022-06-22 11:23:14 +02:00
vortex.c	x86/CPU: Add support for Vortex CPUs	2021-10-21 15:49:07 +02:00
zhaoxin.c	x86/cpu: Reinitialize IA32_FEAT_CTL MSR on BSP during wakeup	2020-06-15 14:18:37 +02:00