diff options
| author | Juergen Gross <jgross@suse.com> | 2021-10-28 10:27:48 +0300 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2021-11-02 16:03:43 +0300 |
| commit | e453f872b72fb93e54ab0f3a07eeeacc2215fd15 (patch) | |
| tree | 20df57b437bbe83b8ebd6798c1f174f1929a5d98 /arch/x86/include/asm/paravirt_types.h | |
| parent | 12ad6cfc09a5bbe59ba9bae3a103bd3c7130c7c2 (diff) | |
| download | linux-e453f872b72fb93e54ab0f3a07eeeacc2215fd15.tar.xz | |
x86/xen: switch initial pvops IRQ functions to dummy ones
The initial pvops functions handling irq flags will only ever be called
before interrupts are being enabled.
So switch them to be dummy functions:
- xen_save_fl() can always return 0
- xen_irq_disable() is a nop
- xen_irq_enable() can BUG()
Add some generic paravirt functions for that purpose.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211028072748.29862-3-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'arch/x86/include/asm/paravirt_types.h')
| -rw-r--r-- | arch/x86/include/asm/paravirt_types.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index d9d6b0203ec4..fc1151e77569 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -577,7 +577,9 @@ void paravirt_leave_lazy_mmu(void); void paravirt_flush_lazy_mmu(void); void _paravirt_nop(void); +void paravirt_BUG(void); u64 _paravirt_ident_64(u64); +unsigned long paravirt_ret0(void); #define paravirt_nop ((void *)_paravirt_nop) |