From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Subject: [PATCH 0/7] target/arm: Implement FEAT_EVT
Date: Fri, 28 Oct 2022 14:39:55 +0100 [thread overview]
Message-ID: <20221028134002.730598-1-peter.maydell@linaro.org> (raw)
The architectural feature FEAT_EVT adds adds five new bits to the
HCR_EL2 register: TTLBIS, TTLBOS, TICAB, TOCU and TID4. These allow
the guest to enable trapping of various EL1 instructions to EL2.
This patch series implements the feature and turns it on for
the 'max' CPU.
Patch 1 is a bug fix where we forgot one of the existing
trap bits when we added the new TLB maintenance operations
for FEAT_TLBIOS and FEAT_TLBRANGE.
thanks
-- PMM
Peter Maydell (7):
target/arm: Make TLBIOS and TLBIRANGE ops trap on HCR_EL2.TTLB
target/arm: Allow relevant HCR bits to be written for FEAT_EVT
target/arm: Implement HCR_EL2.TTLBIS traps
target/arm: Implement HCR_EL2.TTLBOS traps
target/arm: Implement HCR_EL2.TICAB,TOCU traps
target/arm: Implement HCR_EL2.TID4 traps
target/arm: Report FEAT_EVT for TCG '-cpu max'
docs/system/arm/emulation.rst | 1 +
target/arm/cpu.h | 30 +++++++
target/arm/cpu64.c | 1 +
target/arm/cpu_tcg.c | 1 +
target/arm/helper.c | 144 ++++++++++++++++++++++------------
5 files changed, 126 insertions(+), 51 deletions(-)
--
2.25.1
next reply other threads:[~2022-10-28 13:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-28 13:39 Peter Maydell [this message]
2022-10-28 13:39 ` [PATCH 1/7] target/arm: Make TLBIOS and TLBIRANGE ops trap on HCR_EL2.TTLB Peter Maydell
2022-10-28 19:29 ` Richard Henderson
2022-10-28 13:39 ` [PATCH 2/7] target/arm: Allow relevant HCR bits to be written for FEAT_EVT Peter Maydell
2022-10-28 19:35 ` Richard Henderson
2022-10-28 13:39 ` [PATCH 3/7] target/arm: Implement HCR_EL2.TTLBIS traps Peter Maydell
2022-10-28 19:39 ` Richard Henderson
2022-10-28 13:39 ` [PATCH 4/7] target/arm: Implement HCR_EL2.TTLBOS traps Peter Maydell
2022-10-28 19:40 ` Richard Henderson
2022-10-28 13:40 ` [PATCH 5/7] target/arm: Implement HCR_EL2.TICAB,TOCU traps Peter Maydell
2022-10-28 19:43 ` Richard Henderson
2022-10-28 13:40 ` [PATCH 6/7] target/arm: Implement HCR_EL2.TID4 traps Peter Maydell
2022-10-28 19:46 ` Richard Henderson
2022-10-28 13:40 ` [PATCH 7/7] target/arm: Report FEAT_EVT for TCG '-cpu max' Peter Maydell
2022-10-28 19:47 ` Richard Henderson
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