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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::533; envelope-from=alex.bennee@linaro.org; helo=mail-ed1-x533.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, berrange@redhat.com, stefanha@redhat.com, crosa@redhat.com, Richard Henderson , aaron@os.amperecomputing.com, robhenry@microsoft.com, f4bug@amsat.org, mahmoudabdalghany@outlook.com, minyihh@uci.edu, cota@braap.org, Luke.Craig@ll.mit.edu, pbonzini@redhat.com, kuhn.chenqun@huawei.com, ma.mandourr@gmail.com, =?UTF-8?q?Alex=20Benn=C3=A9e?= , aurelien@aurel32.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1649437058075100001 This gives a little more insight into what is going on as we invalidate a range of TBs. Signed-off-by: Alex Benn=C3=A9e --- accel/tcg/translate-all.c | 9 +++++++++ accel/tcg/trace-events | 1 + 2 files changed, 10 insertions(+) diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index b0009177b9..625c46dd9b 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -1671,6 +1671,7 @@ tb_invalidate_phys_page_range__locked(struct page_col= lection *pages, TranslationBlock *tb; tb_page_addr_t tb_start, tb_end; int n; + int checked =3D 0, removed =3D 0; #ifdef TARGET_HAS_PRECISE_SMC CPUState *cpu =3D current_cpu; CPUArchState *env =3D NULL; @@ -1695,6 +1696,7 @@ tb_invalidate_phys_page_range__locked(struct page_col= lection *pages, the code */ PAGE_FOR_EACH_TB(p, tb, n) { assert_page_locked(p); + checked++; /* NOTE: this is subtle as a TB may span two physical pages */ if (n =3D=3D 0) { /* NOTE: tb_end may be after the end of the page, but @@ -1728,13 +1730,20 @@ tb_invalidate_phys_page_range__locked(struct page_c= ollection *pages, } #endif /* TARGET_HAS_PRECISE_SMC */ tb_phys_invalidate__locked(tb); + removed++; } } + + #if !defined(CONFIG_USER_ONLY) /* if no code remaining, no need to continue to use slow writes */ if (!p->first_tb) { invalidate_page_bitmap(p); tlb_unprotect_code(start); + trace_tb_invalidate_phys_page_range(checked, removed, 0); + } else { + TranslationBlock *tb =3D (TranslationBlock *) p->first_tb; + trace_tb_invalidate_phys_page_range(checked, removed, tb->pc); } #endif #ifdef TARGET_HAS_PRECISE_SMC diff --git a/accel/tcg/trace-events b/accel/tcg/trace-events index c034649dc2..fdc64e1423 100644 --- a/accel/tcg/trace-events +++ b/accel/tcg/trace-events @@ -15,5 +15,6 @@ memory_notdirty_set_dirty(uint64_t vaddr) "0x%" PRIx64 =20 # translate-all.c tb_phys_invalidate(void *tb, uintptr_t pc) "tb:%p, pc:0x%"PRIxPTR"" +tb_invalidate_phys_page_range(int checked, int removed, uintptr_t ftb_pc) = "checked:%d removed:%d first_tb_pc:0x%"PRIxPTR"" tb_invalidate_phys_page_fast(uint64_t page_start, int len, uint64_t ret, i= nt wc, void *bmap) "addr:0x%" PRIx64 "/%d pc:0x%" PRIx64" wc:%d/%p" translate_block(void *tb, uintptr_t pc, const void *tb_code) "tb:%p, pc:0x= %"PRIxPTR", tb_code:%p" --=20 2.30.2