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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-06-25 00:19:27 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 13:13:37 +0200 |
| commit | c7245da6ae7e5208504ff027c4e0eec69b788651 (patch) | |
| tree | 47767af25940999d36f4682dd3e0820c1580092a /include/asm-x86/paravirt.h | |
| parent | d75cd22fdd5f7d203fb60014d426942df33dd9a6 (diff) | |
| download | kernel_samsung_smdk4412-c7245da6ae7e5208504ff027c4e0eec69b788651.zip kernel_samsung_smdk4412-c7245da6ae7e5208504ff027c4e0eec69b788651.tar.gz kernel_samsung_smdk4412-c7245da6ae7e5208504ff027c4e0eec69b788651.tar.bz2 | |
x86/paravirt, 64-bit: don't restore user rsp within sysret
There's no need to combine restoring the user rsp within the sysret
pvop, so split it out. This makes the pvop's semantics closer to the
machine instruction.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citirx.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/paravirt.h')
| -rw-r--r-- | include/asm-x86/paravirt.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 2668903..dad5b41 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -143,7 +143,7 @@ struct pv_cpu_ops { /* These three are jmp to, not actually called. */ void (*irq_enable_sysexit)(void); - void (*usersp_sysret)(void); + void (*usergs_sysret)(void); void (*iret)(void); void (*swapgs)(void); @@ -1505,10 +1505,10 @@ static inline unsigned long __raw_local_irq_save(void) movq %rax, %rcx; \ xorq %rax, %rax; -#define USERSP_SYSRET \ - PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usersp_sysret), \ +#define USERGS_SYSRET \ + PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret), \ CLBR_NONE, \ - jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usersp_sysret)) + jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret)) #endif #endif /* __ASSEMBLY__ */ |