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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-21 16:49:58 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-24 12:28:12 +0200 |
| commit | 2dc1697eb355c34f9f7bcbbb83f490de248c360a (patch) | |
| tree | eeded09dab5b604ec5b6a1b1c10a3ff304ced75d /arch/x86/xen | |
| parent | 9e882c9282512cc622752f29ec7c29ce338fc1eb (diff) | |
| download | linux-2dc1697eb355c34f9f7bcbbb83f490de248c360a.tar.gz linux-2dc1697eb355c34f9f7bcbbb83f490de248c360a.tar.bz2 linux-2dc1697eb355c34f9f7bcbbb83f490de248c360a.zip | |
xen: don't use sysret for sysexit32
When implementing sysexit32, don't let Xen use sysret to return to
userspace. That results in usermode register state being trashed.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/xen-asm_64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S index 4038cbfe3331..7f58304fafb3 100644 --- a/arch/x86/xen/xen-asm_64.S +++ b/arch/x86/xen/xen-asm_64.S @@ -173,7 +173,7 @@ ENTRY(xen_sysexit) pushq $__USER32_CS pushq %rdx - pushq $VGCF_in_syscall + pushq $0 1: jmp hypercall_iret ENDPATCH(xen_sysexit) RELOC(xen_sysexit, 1b+1) |