Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into next
Two bug fixes for HV KVM on POWER9 machines.
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index d73e9df..440f342 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -46,7 +46,7 @@
/* Bits in patb0 field */
#define PATB_HR (1UL << 63)
-#define RPDB_MASK 0x0ffffffffffff00fUL
+#define RPDB_MASK 0x0fffffffffffff00UL
#define RPDB_SHIFT (1UL << 8)
#define RTS1_SHIFT 61 /* top 2 bits of radix tree size */
#define RTS1_MASK (3UL << RTS1_SHIFT)
@@ -57,6 +57,7 @@
/* Bits in patb1 field */
#define PATB_GR (1UL << 63) /* guest uses radix; must match HR */
#define PRTS_MASK 0x1f /* process table size field */
+#define PRTB_MASK 0x0ffffffffffff000UL
/*
* Limit process table to PAGE_SIZE table. This
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 4344651..f6b3e67 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -32,6 +32,7 @@
u32 pid;
int ret, level, ps;
__be64 prte, rpte;
+ unsigned long ptbl;
unsigned long root, pte, index;
unsigned long rts, bits, offset;
unsigned long gpa;
@@ -53,8 +54,8 @@
return -EINVAL;
/* Read partition table to find root of tree for effective PID */
- ret = kvm_read_guest(kvm, kvm->arch.process_table + pid * 16,
- &prte, sizeof(prte));
+ ptbl = (kvm->arch.process_table & PRTB_MASK) + (pid * 16);
+ ret = kvm_read_guest(kvm, ptbl, &prte, sizeof(prte));
if (ret)
return ret;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 47414a6..7c6477d 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1787,12 +1787,12 @@
/* HPTE not found fault or protection fault? */
andis. r0, r6, (DSISR_NOHPTE | DSISR_PROTFAULT)@h
beq 1f /* if not, send it to the guest */
+ andi. r0, r11, MSR_DR /* data relocation enabled? */
+ beq 3f
BEGIN_FTR_SECTION
mfspr r5, SPRN_ASDR /* on POWER9, use ASDR to get VSID */
b 4f
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
- andi. r0, r11, MSR_DR /* data relocation enabled? */
- beq 3f
clrrdi r0, r4, 28
PPC_SLBFEE_DOT(R5, R0) /* if so, look up SLB */
li r0, BOOK3S_INTERRUPT_DATA_SEGMENT
@@ -1879,12 +1879,12 @@
bne .Lradix_hisi /* for radix, just save ASDR */
andis. r0, r11, SRR1_ISI_NOPT@h
beq 1f
+ andi. r0, r11, MSR_IR /* instruction relocation enabled? */
+ beq 3f
BEGIN_FTR_SECTION
mfspr r5, SPRN_ASDR /* on POWER9, use ASDR to get VSID */
b 4f
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
- andi. r0, r11, MSR_IR /* instruction relocation enabled? */
- beq 3f
clrrdi r0, r10, 28
PPC_SLBFEE_DOT(R5, R0) /* if so, look up SLB */
li r0, BOOK3S_INTERRUPT_INST_SEGMENT
