Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH v6 0/8] powerpc/watchpoint: Bug fixes plus new feature flag | Date | Thu, 17 Sep 2020 21:27:29 +1000 (AEST) |
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On Wed, 2 Sep 2020 09:59:37 +0530, Ravi Bangoria wrote: > Patch #1 fixes issue for quardword instruction on p10 predecessors. > Patch #2 fixes issue for vector instructions. > Patch #3 fixes a bug about watchpoint not firing when created with > ptrace PPC_PTRACE_SETHWDEBUG and CONFIG_HAVE_HW_BREAKPOINT=N. > The fix uses HW_BRK_TYPE_PRIV_ALL for ptrace user which, I > guess, should be fine because we don't leak any kernel > addresses and PRIV_ALL will also help to cover scenarios when > kernel accesses user memory. > Patch #4,#5 fixes infinite exception bug, again the bug happens only > with CONFIG_HAVE_HW_BREAKPOINT=N. > Patch #6 fixes two places where we are missing to set hw_len. > Patch #7 introduce new feature bit PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 > which will be set when running on ISA 3.1 compliant machine. > Patch #8 finally adds selftest to test scenarios fixed by patch#2,#3 > and also moves MODE_EXACT tests outside of BP_RANGE condition. > > [...]
Applied to powerpc/next.
[1/8] powerpc/watchpoint: Fix quadword instruction handling on p10 predecessors https://git.kernel.org/powerpc/c/4759c11ed20454b7b36db4ec15f7d5aa1519af4a [2/8] powerpc/watchpoint: Fix handling of vector instructions https://git.kernel.org/powerpc/c/4441eb02333a9b46a0d919aa7a6d3b137b5f2562 [3/8] powerpc/watchpoint/ptrace: Fix SETHWDEBUG when CONFIG_HAVE_HW_BREAKPOINT=N https://git.kernel.org/powerpc/c/9b6b7c680cc20971444d9f836e49fc98848bcd0a [4/8] powerpc/watchpoint: Move DAWR detection logic outside of hw_breakpoint.c https://git.kernel.org/powerpc/c/edc8dd99b29e4d705c45e2a3a6c01b096ee056db [5/8] powerpc/watchpoint: Fix exception handling for CONFIG_HAVE_HW_BREAKPOINT=N https://git.kernel.org/powerpc/c/5b905d77987de065bdd3a2906816b5f143df087b [6/8] powerpc/watchpoint: Add hw_len wherever missing https://git.kernel.org/powerpc/c/58da5984d2ea6d95f3f9d9e8dd9f7e1b0dddfb3c [7/8] powerpc/watchpoint/ptrace: Introduce PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 https://git.kernel.org/powerpc/c/fa725cc53d353110f39a9e5b9f60d6acb2c7ff49 [8/8] selftests/powerpc: Tests for kernel accessing user memory https://git.kernel.org/powerpc/c/ac234524056da4e0c081f682da3ea25cdaab737a
cheers
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