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db5b2c5a90
linux/arch/x86/entry
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Andy Lutomirski db5b2c5a90 x86/entry/compat: Clear RAX high bits on Xen PV SYSENTER 
Move the clearing of the high bits of RAX after Xen PV joins the SYSENTER
path so that Xen PV doesn't skip it.

Arguably this code should be deleted instead, but that would belong in the
merge window.

Fixes: ffae641f57 ("x86/entry/64/compat: Fix Xen PV SYSENTER frame setup")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/9d33b3f3216dcab008070f1c28b6091ae7199969.1593795633.git.luto@kernel.org
2020-07-04 19:47:25 +02:00
..
syscalls vfs: add faccessat2 syscall 2020-05-14 16:44:25 +02:00
vdso Rebase locking/kcsan to locking/urgent 2020-06-11 20:02:46 +02:00
vsyscall y2038: syscall implementation cleanups 2019-12-01 14:00:59 -08:00
calling.h x86/entry: Remove the apic/BUILD interrupt leftovers 2020-06-11 15:15:16 +02:00
common.c x86/entry: Move SYSENTER's regs->sp and regs->flags fixups into C 2020-07-01 10:00:25 +02:00
entry_32.S x86/entry: Move SYSENTER's regs->sp and regs->flags fixups into C 2020-07-01 10:00:25 +02:00
entry_64_compat.S x86/entry/compat: Clear RAX high bits on Xen PV SYSENTER 2020-07-04 19:47:25 +02:00
entry_64.S x86/entry: Unbreak __irqentry_text_start/end magic 2020-06-11 15:15:29 +02:00
Makefile x86/entry: Make entry_64_compat.S objtool clean 2020-06-11 15:14:40 +02:00
syscall_32.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
syscall_64.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
syscall_x32.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
thunk_32.S x86/entry: Rename ___preempt_schedule 2020-03-21 16:03:53 +01:00
thunk_64.S x86/entry: Remove the TRACE_IRQS cruft 2020-06-11 15:15:19 +02:00