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thermosphere: fix guest access to irq 25, etc; we don't need to raise VI manually

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See Armv8a TRM "Virtual IRQ exception"
This commit is contained in:
TuxSH
2019-12-26 00:05:36 +00:00
parent cdf3bc6942
commit 676a895cca
3 changed files with 47 additions and 35 deletions
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12
thermosphere/src/irq.h
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@@ -20,6 +20,7 @@
#include "spinlock.h"
#include "exceptions.h"
#include "utils.h"
#include "platform/interrupt_config.h"
#define IRQ_PRIORITY_HOST 0
#define IRQ_PRIORITY_GUEST 1
@@ -46,7 +47,6 @@ extern IrqManager g_irqManager;
void initIrq(void);
void handleIrqException(ExceptionStackFrame *frame, bool isLowerEl, bool isA32);
bool isGuestIrq(u16 id);
static inline void generateSgiForAllOthers(ThermosphereSgi id)
{
@@ -67,3 +67,13 @@ static inline void generateSgiForAll(ThermosphereSgi id)
{
generateSgiForList(id, MASK(g_irqManager.numCpuInterfaces));
}
static inline bool irqIsEnabled(u16 id)
{
return (g_irqManager.gic.gicd->isenabler[id / 32] & BIT(id % 32)) != 0;
}
static inline bool irqIsGuest(u16 id)
{
return id != GIC_IRQID_MAINTENANCE && id != GIC_IRQID_HYP_TIMER;
}