summaryrefslogtreecommitdiff
path: root/arch/arm64/include/asm/kvm_mmu.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm64/include/asm/kvm_mmu.h')
-rw-r--r--arch/arm64/include/asm/kvm_mmu.h61
1 files changed, 17 insertions, 44 deletions
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index e52d82aeadca..90873851f677 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -73,49 +73,39 @@ alternative_cb_end
.endm
/*
- * Convert a kernel image address to a PA
- * reg: kernel address to be converted in place
+ * Convert a hypervisor VA to a PA
+ * reg: hypervisor address to be converted in place
* tmp: temporary register
- *
- * The actual code generation takes place in kvm_get_kimage_voffset, and
- * the instructions below are only there to reserve the space and
- * perform the register allocation (kvm_get_kimage_voffset uses the
- * specific registers encoded in the instructions).
*/
-.macro kimg_pa reg, tmp
-alternative_cb kvm_get_kimage_voffset
- movz \tmp, #0
- movk \tmp, #0, lsl #16
- movk \tmp, #0, lsl #32
- movk \tmp, #0, lsl #48
-alternative_cb_end
-
- /* reg = __pa(reg) */
- sub \reg, \reg, \tmp
+.macro hyp_pa reg, tmp
+ ldr_l \tmp, hyp_physvirt_offset
+ add \reg, \reg, \tmp
.endm
/*
- * Convert a kernel image address to a hyp VA
- * reg: kernel address to be converted in place
+ * Convert a hypervisor VA to a kernel image address
+ * reg: hypervisor address to be converted in place
* tmp: temporary register
*
* The actual code generation takes place in kvm_get_kimage_voffset, and
* the instructions below are only there to reserve the space and
- * perform the register allocation (kvm_update_kimg_phys_offset uses the
+ * perform the register allocation (kvm_get_kimage_voffset uses the
* specific registers encoded in the instructions).
*/
-.macro kimg_hyp_va reg, tmp
-alternative_cb kvm_update_kimg_phys_offset
+.macro hyp_kimg_va reg, tmp
+ /* Convert hyp VA -> PA. */
+ hyp_pa \reg, \tmp
+
+ /* Load kimage_voffset. */
+alternative_cb kvm_get_kimage_voffset
movz \tmp, #0
movk \tmp, #0, lsl #16
movk \tmp, #0, lsl #32
movk \tmp, #0, lsl #48
alternative_cb_end
- sub \reg, \reg, \tmp
- mov_q \tmp, PAGE_OFFSET
- orr \reg, \reg, \tmp
- kern_hyp_va \reg
+ /* Convert PA -> kimg VA. */
+ add \reg, \reg, \tmp
.endm
#else
@@ -129,6 +119,7 @@ alternative_cb_end
void kvm_update_va_mask(struct alt_instr *alt,
__le32 *origptr, __le32 *updptr, int nr_inst);
void kvm_compute_layout(void);
+void kvm_apply_hyp_relocations(void);
static __always_inline unsigned long __kern_hyp_va(unsigned long v)
{
@@ -144,24 +135,6 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
#define kern_hyp_va(v) ((typeof(v))(__kern_hyp_va((unsigned long)(v))))
-static __always_inline unsigned long __kimg_hyp_va(unsigned long v)
-{
- unsigned long offset;
-
- asm volatile(ALTERNATIVE_CB("movz %0, #0\n"
- "movk %0, #0, lsl #16\n"
- "movk %0, #0, lsl #32\n"
- "movk %0, #0, lsl #48\n",
- kvm_update_kimg_phys_offset)
- : "=r" (offset));
-
- return __kern_hyp_va((v - offset) | PAGE_OFFSET);
-}
-
-#define kimg_fn_hyp_va(v) ((typeof(*v))(__kimg_hyp_va((unsigned long)(v))))
-
-#define kimg_fn_ptr(x) (typeof(x) **)(x)
-
/*
* We currently support using a VM-specified IPA size. For backward
* compatibility, the default IPA size is fixed to 40bits.