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hv: Leave interrupts disabled during vmexit - ACRN partition mode

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Since vmexit handling in ACRN partition mode is not complex (since no SOS and
all devices passthru), interrupts can stay disabled in root mode during
vmexit handling.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
This commit is contained in:
Sainath Grandhi
2018-08-23 12:35:08 -07:00
committed by wenlingz
parent 348422dba6
commit 43741ba5e3
2 changed files with 8 additions and 4 deletions
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8
hypervisor/include/arch/x86/cpu.h
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@@ -367,17 +367,25 @@ void wait_sync_change(uint64_t *sync, uint64_t wake_sync);
"a" (msrl), "d" (msrh)); \
}
#ifdef CONFIG_PARTITION_MODE
#define CPU_IRQ_DISABLE()
#else
/* Disables interrupts on the current CPU */
#define CPU_IRQ_DISABLE() \
{ \
asm volatile ("cli\n" : : : "cc"); \
}
#endif
#ifdef CONFIG_PARTITION_MODE
#define CPU_IRQ_ENABLE()
#else
/* Enables interrupts on the current CPU */
#define CPU_IRQ_ENABLE() \
{ \
asm volatile ("sti\n" : : : "cc"); \
}
#endif
/* This macro writes the stack pointer. */
#define CPU_SP_WRITE(stack_ptr) \