| Message ID | 1501153150-19984-1-git-send-email-peter.maydell@linaro.org |
|---|---|
| Headers | show |
| Series | M profile MPU bugfixes | expand |
On 27 July 2017 at 11:59, Peter Maydell <peter.maydell@linaro.org> wrote: > This patchset fixes some bugs in the M profile MPU code: > * the guest shouldn't be able to make system space executable > * PPB region accesses should not be subject to MPU lookups > * we were not resetting the PMSAv7 MPU state for M profile CPUs > * we weren't migrating the MPU_RNR state > > The renaming from cp15.c6_rgnr to pmsav7.rnr is not strictly > necessary for 2.10, but it doesn't affect many places in the code > and it restores the invariant that no mutable M profile CPU > state is stored in env->cp15.something fields. Applied to target-arm queue for 2.10, with the minor function renames (s/is_/m_is_/) suggested by Philippe. thanks -- PMM
This patchset fixes some bugs in the M profile MPU code: * the guest shouldn't be able to make system space executable * PPB region accesses should not be subject to MPU lookups * we were not resetting the PMSAv7 MPU state for M profile CPUs * we weren't migrating the MPU_RNR state The renaming from cp15.c6_rgnr to pmsav7.rnr is not strictly necessary for 2.10, but it doesn't affect many places in the code and it restores the invariant that no mutable M profile CPU state is stored in env->cp15.something fields. thanks -- PMM Peter Maydell (5): target/arm: Don't do MPU lookups for addresses in M profile PPB region target/arm: Don't allow guest to make System space executable for M profile target/arm: Rename cp15.c6_rgnr to pmsav7.rnr target/arm: Move PMSAv7 reset into arm_cpu_reset() so M profile MPUs get reset target/arm: Migrate MPU_RNR register state for M profile cores hw/intc/armv7m_nvic.c | 14 +++++------ target/arm/cpu.c | 14 +++++++++++ target/arm/cpu.h | 3 +-- target/arm/helper.c | 67 +++++++++++++++++++++++++++++++++++---------------- target/arm/machine.c | 30 ++++++++++++++++++++++- 5 files changed, 97 insertions(+), 31 deletions(-) -- 2.7.4