Andy Lutomirski 61f01dd941 x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue ... AMD CPUs don't reinitialize the SS descriptor on SYSRET, so SYSRET with SS == 0 results in an invalid usermode state in which SS is apparently equal to __USER_DS but causes #SS if used. Work around the issue by setting SS to __KERNEL_DS __switch_to, thus ensuring that SYSRET never happens with SS set to NULL. This was exposed by a recent vDSO cleanup. Fixes: e7d6eefaaa x86/vdso32/syscall.S: Do not load __USER32_DS to %ss Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Peter Anvin <hpa@zytor.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Brian Gerst <brgerst@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-04-26 17:57:38 -07:00
..
mcheck	Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-04-13 13:33:20 -07:00
microcode	x86/microcode/amd: Drop the pci_ids.h dependency	2015-03-31 09:54:32 +02:00
mtrr	x86: mtrr: if: remove use of seq_printf return value	2015-04-15 16:35:24 -07:00
.gitignore
amd.c	x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue	2015-04-26 17:57:38 -07:00
bugs.c
bugs_64.c
centaur.c
common.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-04-14 14:37:47 -07:00
cpu.h
cyrix.c
hypervisor.c
intel.c	x86/cpu/intel: Fix trivial typo in intel_tlb_table[]	2015-02-22 08:55:58 +01:00
intel_cacheinfo.c	x86/cpu/cacheinfo: Fix cache_get_priv_group() for Intel processors	2015-03-23 10:22:38 +01:00
intel_pt.h	perf/x86/intel/pt: Add Intel PT PMU driver	2015-04-02 17:14:20 +02:00
Makefile	perf/x86/intel/bts: Add BTS PMU driver	2015-04-02 17:14:21 +02:00
match.c
mkcapflags.sh	x86/build: Fix mkcapflags.sh bash-ism	2015-02-19 02:21:00 +01:00
mshyperv.c	x86, hyperv: Mark the Hyper-V clocksource as being continuous	2015-01-20 14:36:25 +01:00
perf_event.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-04-14 14:37:47 -07:00
perf_event.h	perf/x86: Fix hw_perf_event::flags collision	2015-04-17 09:50:43 +02:00
perf_event_amd.c	perf/x86: Add 'index' param to get_event_constraint() callback	2015-04-02 17:33:10 +02:00
perf_event_amd_ibs.c	perf/x86/amd/ibs: Convert force_ibs_eilvt_setup() to void	2015-02-18 17:01:46 +01:00
perf_event_amd_iommu.c
perf_event_amd_iommu.h
perf_event_amd_uncore.c
perf_event_intel.c	perf/x86/intel: Add Broadwell support for the LBR callstack	2015-04-17 09:59:07 +02:00
perf_event_intel_bts.c	perf/x86/intel/pt: Fix the 32-bit build	2015-04-02 17:58:45 +02:00
perf_event_intel_cqm.c	perf: Remove type specific target pointers	2015-03-23 10:58:04 +01:00
perf_event_intel_ds.c	perf/x86/intel: Fix Core2,Atom,NHM,WSM cycles:pp events	2015-04-17 09:58:47 +02:00
perf_event_intel_lbr.c	perf/x86/intel: Avoid rewriting DEBUGCTL with the same value for LBRs	2015-04-02 17:33:20 +02:00
perf_event_intel_pt.c	perf/x86/intel/pt: Fix and clean up error handling in pt_event_add()	2015-04-18 13:31:26 +02:00
perf_event_intel_rapl.c	perf/x86/intel/rapl: Fix energy counter measurements but supporing per domain energy units	2015-04-17 09:58:56 +02:00
perf_event_intel_uncore.c	perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization	2015-01-28 13:04:34 +01:00
perf_event_intel_uncore.h	perf/x86/intel/uncore: Move uncore_box_init() out of driver initialization	2015-01-28 13:04:34 +01:00
perf_event_intel_uncore_nhmex.c
perf_event_intel_uncore_snb.c
perf_event_intel_uncore_snbep.c	perf/x86/intel/uncore: Delete an unnecessary check before pci_dev_put() call	2015-02-18 17:01:42 +01:00
perf_event_knc.c
perf_event_p4.c
perf_event_p6.c
perfctr-watchdog.c
powerflags.c
proc.c
rdrand.c
scattered.c	x86: Add Intel Processor Trace (INTEL_PT) cpu feature detection	2015-04-02 17:14:18 +02:00
topology.c
transmeta.c
umc.c
vmware.c