[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 kevinz changed: What|Removed |Added CC||kevin.z...@linaro.org --- Comment #16 from kevinz

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Jeffrey Walton changed: What|Removed |Added CC||noloa...@gmail.com -- You are receiving this

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Mark Wielaard changed: What|Removed |Added Resolution|--- |FIXED Status|UNCONFIRMED

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #14 from Mark Wielaard --- Created attachment 113427 --> https://bugs.kde.org/attachment.cgi?id=113427=edit mask arm64 hwcaps This patch should do the right thing. It simply adds the VKI_HWCAPs to vki/vki-arm64-linux.h and masks AT_HWCAP

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #13 from Peter Maydell --- Based on a quick grep of guest_arm64_toIR.c to see what insns it has, I think Valgrind should be setting the hwcap bits AES, PMULL, SHA1, SHA2, CRC32, FP, ASIMD and making the rest zero. -- You are receiving

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #12 from Peter Maydell --- Sorry about the bogus kernel-source link -- I made the mistake of linking to the 'latest' version, which of course is a moving target so the line number reference gets out of date. Here's the link to a specific

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #11 from Peter Maydell --- The A-profile Arm ARM can be downloaded from https://developer.arm.com/products/architecture/a-profile/docs without requiring a login/clickthrough/etc. -- You are receiving this mail because: You are watching

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #10 from Mark Wielaard --- (In reply to Tom Hughes from comment #9) > ARM ARM is the ARM Architecture Reference Manual, aka the official > documentation of the instruction set. Thanks. Is that document publicly available anywhere? The only

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Tom Hughes changed: What|Removed |Added CC||t...@compton.nu --- Comment #9 from Tom Hughes

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #8 from Mark Wielaard --- (In reply to Peter Maydell from comment #6) > Looking back in the history, my comment #3 should have enough information > for somebody who knows what instructions Valgrind implements to be able to > set the hwcaps

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #7 from Mark Wielaard --- (In reply to Peter Maydell from comment #5) > That workaround change looks wrong to me. Surely Valgrind supports at least > FP and Neon ? I think so, but nobody seems to test the AT_HWCAP bits for them it seems.

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #6 from Peter Maydell --- Looking back in the history, my comment #3 should have enough information for somebody who knows what instructions Valgrind implements to be able to set the hwcaps appropriately. -- You are receiving this mail

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #5 from Peter Maydell --- That workaround change looks wrong to me. Surely Valgrind supports at least FP and Neon ? -- You are receiving this mail because: You are watching all bug changes.

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #4 from Mark Wielaard --- I pushed the workaround mentioned in comment #1: commit ad4481d23aa54ad947f7dcd194f1233e0b99c70f Author: Mark Wielaard Date: Mon Jun 18 15:07:27 2018 +0200 Add workaround for arm64 AT_HWCAP on newer

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Peter Maydell changed: What|Removed |Added CC|

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 --- Comment #2 from Mark Wielaard --- I cannot find any information on the arm64 HWCAP. There is just this list of constants in the kernel sources: #define HWCAP_FP(1 << 0) #define HWCAP_ASIMD (1 << 1)

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Mark Wielaard changed: What|Removed |Added CC||m...@klomp.org --- Comment #1

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Florian Weimer changed: What|Removed |Added CC||fwei...@redhat.com --

[valgrind] [Bug 381556] arm64: Handle feature registers access on 4.11 Linux kernel or later

https://bugs.kde.org/show_bug.cgi?id=381556 Siddhesh Poyarekar changed: What|Removed |Added Summary|Handle feature registers|arm64: Handle