From: K. Y. Srinivasan <k...@microsoft.com>
As part of cleaning up architecture specific code, define APIs
to manipulate the message page.
Signed-off-by: K. Y. Srinivasan <k...@microsoft.com>
---
arch/x86/include/asm/mshyperv.h | 3 +++
drivers/hv/hv.c | 8 ++++----
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index a58c201..1e75141 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -140,6 +140,9 @@ static inline void vmbus_signal_eom(struct hv_message *msg,
u32 old_msg_type)
#define hv_init_timer(timer, tick) wrmsrl(timer, tick)
#define hv_init_timer_config(config, val) wrmsrl(config, val)
+#define hv_get_simp(val) rdmsrl(HV_X64_MSR_SIMP, val)
+#define hv_set_simp(val) wrmsrl(HV_X64_MSR_SIMP, val)
+
void hyperv_callback_vector(void);
#ifdef CONFIG_TRACING
#define trace_hyperv_callback_vector hyperv_callback_vector
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 5a2a329..6088442d 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -268,12 +268,12 @@ int hv_synic_init(unsigned int cpu)
u64 vp_index;
/* Setup the Synic's message page */
- rdmsrl(HV_X64_MSR_SIMP, simp.as_uint64);
+ hv_get_simp(simp.as_uint64);
simp.simp_enabled = 1;
simp.base_simp_gpa = virt_to_phys(hv_context.synic_message_page[cpu])
>> PAGE_SHIFT;
- wrmsrl(HV_X64_MSR_SIMP, simp.as_uint64);
+ hv_set_simp(simp.as_uint64);
/* Setup the Synic's event page */
rdmsrl(HV_X64_MSR_SIEFP, siefp.as_uint64);
@@ -392,11 +392,11 @@ int hv_synic_cleanup(unsigned int cpu)
/* Disable the interrupt */
wrmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, shared_sint.as_uint64);
- rdmsrl(HV_X64_MSR_SIMP, simp.as_uint64);
+ hv_get_simp(simp.as_uint64);
simp.simp_enabled = 0;
simp.base_simp_gpa = 0;
- wrmsrl(HV_X64_MSR_SIMP, simp.as_uint64);
+ hv_set_simp(simp.as_uint64);
rdmsrl(HV_X64_MSR_SIEFP, siefp.as_uint64);
siefp.siefp_enabled = 0;
--
1.7.4.1
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
