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path: root/drivers/staging/hv/Hv.c
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Diffstat (limited to 'drivers/staging/hv/Hv.c')
-rw-r--r--drivers/staging/hv/Hv.c50
1 files changed, 25 insertions, 25 deletions
diff --git a/drivers/staging/hv/Hv.c b/drivers/staging/hv/Hv.c
index c5b6613f2f2f..c2809f2a2ce0 100644
--- a/drivers/staging/hv/Hv.c
+++ b/drivers/staging/hv/Hv.c
@@ -386,7 +386,7 @@ u16 HvSignalEvent(void)
* retrieve the initialized message and event pages. Otherwise, we create and
* initialize the message and event pages.
*/
-int HvSynicInit(u32 irqVector)
+void HvSynicInit(void *irqarg)
{
u64 version;
union hv_synic_simp simp;
@@ -394,13 +394,14 @@ int HvSynicInit(u32 irqVector)
union hv_synic_sint sharedSint;
union hv_synic_scontrol sctrl;
u64 guestID;
- int ret = 0;
+ u32 irqVector = *((u32 *)(irqarg));
+ int cpu = smp_processor_id();
DPRINT_ENTER(VMBUS);
if (!gHvContext.HypercallPage) {
DPRINT_EXIT(VMBUS);
- return ret;
+ return;
}
/* Check the version */
@@ -425,27 +426,27 @@ int HvSynicInit(u32 irqVector)
*/
rdmsrl(HV_X64_MSR_GUEST_OS_ID, guestID);
if (guestID == HV_LINUX_GUEST_ID) {
- gHvContext.synICMessagePage[0] =
+ gHvContext.synICMessagePage[cpu] =
phys_to_virt(simp.BaseSimpGpa << PAGE_SHIFT);
- gHvContext.synICEventPage[0] =
+ gHvContext.synICEventPage[cpu] =
phys_to_virt(siefp.BaseSiefpGpa << PAGE_SHIFT);
} else {
DPRINT_ERR(VMBUS, "unknown guest id!!");
goto Cleanup;
}
DPRINT_DBG(VMBUS, "MAPPED: Simp: %p, Sifep: %p",
- gHvContext.synICMessagePage[0],
- gHvContext.synICEventPage[0]);
+ gHvContext.synICMessagePage[cpu],
+ gHvContext.synICEventPage[cpu]);
} else {
- gHvContext.synICMessagePage[0] = osd_PageAlloc(1);
- if (gHvContext.synICMessagePage[0] == NULL) {
+ gHvContext.synICMessagePage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
+ if (gHvContext.synICMessagePage[cpu] == NULL) {
DPRINT_ERR(VMBUS,
"unable to allocate SYNIC message page!!");
goto Cleanup;
}
- gHvContext.synICEventPage[0] = osd_PageAlloc(1);
- if (gHvContext.synICEventPage[0] == NULL) {
+ gHvContext.synICEventPage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
+ if (gHvContext.synICEventPage[cpu] == NULL) {
DPRINT_ERR(VMBUS,
"unable to allocate SYNIC event page!!");
goto Cleanup;
@@ -454,7 +455,7 @@ int HvSynicInit(u32 irqVector)
/* Setup the Synic's message page */
rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
simp.SimpEnabled = 1;
- simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[0])
+ simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[cpu])
>> PAGE_SHIFT;
DPRINT_DBG(VMBUS, "HV_X64_MSR_SIMP msr set to: %llx",
@@ -465,7 +466,7 @@ int HvSynicInit(u32 irqVector)
/* Setup the Synic's event page */
rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
siefp.SiefpEnabled = 1;
- siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[0])
+ siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[cpu])
>> PAGE_SHIFT;
DPRINT_DBG(VMBUS, "HV_X64_MSR_SIEFP msr set to: %llx",
@@ -501,32 +502,30 @@ int HvSynicInit(u32 irqVector)
DPRINT_EXIT(VMBUS);
- return ret;
+ return;
Cleanup:
- ret = -1;
-
if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
- if (gHvContext.synICEventPage[0])
- osd_PageFree(gHvContext.synICEventPage[0], 1);
+ if (gHvContext.synICEventPage[cpu])
+ osd_PageFree(gHvContext.synICEventPage[cpu], 1);
- if (gHvContext.synICMessagePage[0])
- osd_PageFree(gHvContext.synICMessagePage[0], 1);
+ if (gHvContext.synICMessagePage[cpu])
+ osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
}
DPRINT_EXIT(VMBUS);
-
- return ret;
+ return;
}
/**
* HvSynicCleanup - Cleanup routine for HvSynicInit().
*/
-void HvSynicCleanup(void)
+void HvSynicCleanup(void *arg)
{
union hv_synic_sint sharedSint;
union hv_synic_simp simp;
union hv_synic_siefp siefp;
+ int cpu = smp_processor_id();
DPRINT_ENTER(VMBUS);
@@ -539,6 +538,7 @@ void HvSynicCleanup(void)
sharedSint.Masked = 1;
+ /* Need to correctly cleanup in the case of SMP!!! */
/* Disable the interrupt */
wrmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, sharedSint.AsUINT64);
@@ -560,8 +560,8 @@ void HvSynicCleanup(void)
wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
- osd_PageFree(gHvContext.synICMessagePage[0], 1);
- osd_PageFree(gHvContext.synICEventPage[0], 1);
+ osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
+ osd_PageFree(gHvContext.synICEventPage[cpu], 1);
}
DPRINT_EXIT(VMBUS);