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Wed, 25 Sep 2019 11:46:13 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 16/16] cputlb: Pass retaddr to tb_check_watchpoint Date: Wed, 25 Sep 2019 11:45:48 -0700 Message-Id: <20190925184548.30673-17-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190925184548.30673-1-richard.henderson@linaro.org> References: <20190925184548.30673-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::630 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Fixes the previous TLB_WATCHPOINT patches because we are currently failing to set cpu->mem_io_pc with the call to cpu_check_watchpoint. Pass down the retaddr directly because it's readily available. Fixes: 50b107c5d61 Reviewed-by: Alex Benn=C3=A9e Reviewed-by: David Hildenbrand Signed-off-by: Richard Henderson --- accel/tcg/translate-all.h | 2 +- accel/tcg/translate-all.c | 6 +++--- exec.c | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/accel/tcg/translate-all.h b/accel/tcg/translate-all.h index 135c1ea96a..a557b4e2bb 100644 --- a/accel/tcg/translate-all.h +++ b/accel/tcg/translate-all.h @@ -30,7 +30,7 @@ void tb_invalidate_phys_page_fast(struct page_collection = *pages, tb_page_addr_t start, int len, uintptr_t retaddr); void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t en= d); -void tb_check_watchpoint(CPUState *cpu); +void tb_check_watchpoint(CPUState *cpu, uintptr_t retaddr); =20 #ifdef CONFIG_USER_ONLY int page_unprotect(target_ulong address, uintptr_t pc); diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index db77fb221b..66d4bc4341 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -2142,16 +2142,16 @@ static bool tb_invalidate_phys_page(tb_page_addr_t = addr, uintptr_t pc) #endif =20 /* user-mode: call with mmap_lock held */ -void tb_check_watchpoint(CPUState *cpu) +void tb_check_watchpoint(CPUState *cpu, uintptr_t retaddr) { TranslationBlock *tb; =20 assert_memory_lock(); =20 - tb =3D tcg_tb_lookup(cpu->mem_io_pc); + tb =3D tcg_tb_lookup(retaddr); if (tb) { /* We can use retranslation to find the PC. */ - cpu_restore_state_from_tb(cpu, tb, cpu->mem_io_pc, true); + cpu_restore_state_from_tb(cpu, tb, retaddr, true); tb_phys_invalidate(tb, -1); } else { /* The exception probably happened in a helper. The CPU state sho= uld diff --git a/exec.c b/exec.c index b3df826039..8a0a6613b1 100644 --- a/exec.c +++ b/exec.c @@ -2758,7 +2758,7 @@ void cpu_check_watchpoint(CPUState *cpu, vaddr addr, = vaddr len, cpu->watchpoint_hit =3D wp; =20 mmap_lock(); - tb_check_watchpoint(cpu); + tb_check_watchpoint(cpu, ra); if (wp->flags & BP_STOP_BEFORE_ACCESS) { cpu->exception_index =3D EXCP_DEBUG; mmap_unlock(); --=20 2.17.1