AuxXxilium/linux_dsm_epyc7002
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3bd29515d1
linux_dsm_epyc7002/arch/x86/entry
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Andy Lutomirski 3bd29515d1 x86/entry/32: Fix FS and GS restore in opportunistic SYSEXIT 
We either need to restore them before popping and thus changing
ESP, or we need to adjust the offsets.  The former is simpler.

Reported-and-tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 5f310f739b x86/entry/32: ("Re-implement SYSENTER using the new C path")
Link: http://lkml.kernel.org/r/461e5c7d8fa3821529893a4893ac9c4bc37f9e17.1445035014.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-18 12:11:16 +02:00
..
syscalls x86/entry/64/compat: Set up full pt_regs for all compat syscalls 2015-10-09 09:41:07 +02:00
vdso x86/entry/32: Re-implement SYSENTER using the new C path 2015-10-09 09:41:10 +02:00
vsyscall x86/entry/vsyscall: Fix undefined symbol warning 2015-09-21 09:56:59 +02:00
calling.h x86/asm/entry/64: Save all regs on interrupt entry 2015-07-07 10:59:07 +02:00
common.c x86/entry/32: Fix entry_INT80_32() to expect interrupts to be on 2015-10-18 12:11:16 +02:00
entry_32.S x86/entry/32: Fix FS and GS restore in opportunistic SYSEXIT 2015-10-18 12:11:16 +02:00
entry_64_compat.S x86/entry/32: Fix entry_INT80_32() to expect interrupts to be on 2015-10-18 12:11:16 +02:00
entry_64.S x86/entry/64/compat: Migrate the body of the syscall entry to C 2015-10-09 09:41:09 +02:00
Makefile x86/entry: Move C entry and exit code to arch/x86/entry/common.c 2015-07-07 10:59:05 +02:00
syscall_32.c x86/syscalls: Give sys_call_ptr_t a useful type 2015-10-09 09:41:08 +02:00
syscall_64.c x86/syscalls: Give sys_call_ptr_t a useful type 2015-10-09 09:41:08 +02:00
thunk_32.S Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
thunk_64.S Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00