[v4,12/21] target/arm: Make PMOVSCLR and PMUSERENR 64 bits wide

Commit Message

Aaron Lindsay April 17, 2018, 8:37 p.m. UTC

This is a bug fix to ensure 64-bit reads of these registers don't read
adjacent data.

Signed-off-by: Aaron Lindsay <[e-mail]>
---
 target/arm/cpu.h    | 4 ++--
 target/arm/helper.c | 5 +++--
 2 files changed, 5 insertions(+), 4 deletions(-)

Patch

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index a56e9a0..9f769ae 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -367,8 +367,8 @@  typedef struct CPUARMState {
         uint32_t c9_data;
         uint64_t c9_pmcr; /* performance monitor control register */
         uint64_t c9_pmcnten; /* perf monitor counter enables */
-        uint32_t c9_pmovsr; /* perf monitor overflow status */
-        uint32_t c9_pmuserenr; /* perf monitor user enable */
+        uint64_t c9_pmovsr; /* perf monitor overflow status */
+        uint64_t c9_pmuserenr; /* perf monitor user enable */
         uint64_t c9_pmselr; /* perf monitor counter selection register */
         uint64_t c9_pminten; /* perf monitor interrupt enables */
         union { /* Memory attribute redirection */
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 62cace7..20b42b4 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -1427,7 +1427,8 @@  static const ARMCPRegInfo v7_cp_reginfo[] = {
       .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten),
       .writefn = pmcntenclr_write },
     { .name = "PMOVSR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 3,
-      .access = PL0_RW, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr),
+      .access = PL0_RW,
+      .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr),
       .accessfn = pmreg_access,
       .writefn = pmovsr_write,
       .raw_writefn = raw_write },
@@ -1487,7 +1488,7 @@  static const ARMCPRegInfo v7_cp_reginfo[] = {
       .accessfn = pmreg_access_xevcntr },
     { .name = "PMUSERENR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 0,
       .access = PL0_R | PL1_RW, .accessfn = access_tpm,
-      .fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr),
+      .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmuserenr),
       .resetvalue = 0,
       .writefn = pmuserenr_write, .raw_writefn = raw_write },
     { .name = "PMUSERENR_EL0", .state = ARM_CP_STATE_AA64,