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authorChristoffer Dall <christoffer.dall@linaro.org>2016-04-24 21:41:36 +0200
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-20 15:39:42 +0200
commitd5a5a0eff368f039ed2222b47c15f09cb60e1245 (patch)
tree3f6fe7e2b16518ecaab92ff8098553c0828cff9b
parent83091db981e105d97562d3ed3ffe676e21927e3a (diff)
downloadlinux-stericsson-d5a5a0eff368f039ed2222b47c15f09cb60e1245.tar.gz
KVM: arm/arm64: Export mmio_read/write_bus
Rename mmio_{read,write}_bus to kvm_mmio_{read,write}_bus and export them out of mmio.c. This will be needed later for the new VGIC implementation. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
-rw-r--r--arch/arm/include/asm/kvm_mmio.h3
-rw-r--r--arch/arm/kvm/mmio.c10
-rw-r--r--arch/arm64/include/asm/kvm_mmio.h3
3 files changed, 11 insertions, 5 deletions
diff --git a/arch/arm/include/asm/kvm_mmio.h b/arch/arm/include/asm/kvm_mmio.h
index d8e90c8cb5fa..f3a7de71f515 100644
--- a/arch/arm/include/asm/kvm_mmio.h
+++ b/arch/arm/include/asm/kvm_mmio.h
@@ -28,6 +28,9 @@ struct kvm_decode {
bool sign_extend;
};
+void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data);
+unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len);
+
int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
phys_addr_t fault_ipa);
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index 0158e9e3276d..10f80a6c797a 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -23,7 +23,7 @@
#include "trace.h"
-static void mmio_write_buf(char *buf, unsigned int len, unsigned long data)
+void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data)
{
void *datap = NULL;
union {
@@ -55,7 +55,7 @@ static void mmio_write_buf(char *buf, unsigned int len, unsigned long data)
memcpy(buf, datap, len);
}
-static unsigned long mmio_read_buf(char *buf, unsigned int len)
+unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len)
{
unsigned long data = 0;
union {
@@ -66,7 +66,7 @@ static unsigned long mmio_read_buf(char *buf, unsigned int len)
switch (len) {
case 1:
- data = buf[0];
+ data = *(u8 *)buf;
break;
case 2:
memcpy(&tmp.hword, buf, len);
@@ -103,7 +103,7 @@ int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
if (len > sizeof(unsigned long))
return -EINVAL;
- data = mmio_read_buf(run->mmio.data, len);
+ data = kvm_mmio_read_buf(run->mmio.data, len);
if (vcpu->arch.mmio_decode.sign_extend &&
len < sizeof(unsigned long)) {
@@ -189,7 +189,7 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
len);
trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, len, fault_ipa, data);
- mmio_write_buf(data_buf, len, data);
+ kvm_mmio_write_buf(data_buf, len, data);
ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, fault_ipa, len,
data_buf);
diff --git a/arch/arm64/include/asm/kvm_mmio.h b/arch/arm64/include/asm/kvm_mmio.h
index fe612a962576..75ea42079757 100644
--- a/arch/arm64/include/asm/kvm_mmio.h
+++ b/arch/arm64/include/asm/kvm_mmio.h
@@ -30,6 +30,9 @@ struct kvm_decode {
bool sign_extend;
};
+void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data);
+unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len);
+
int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
phys_addr_t fault_ipa);