On Fri, Mar 15, 2024 at 11:29:28AM +0100, Marcin Juszkiewicz via arm wrote: > W dniu 15.03.2024 o 03:30, Jonathan Gray pisze: > > > OpenBSD 7.3 boots fine on all core types. OpenBSD 7.4 fails on > > > Neoverse-V1/N2/max. Same situation with today's 7.5-current snapshot. > > > > > > To track the problem I opened a bug against QEMU [1] to have all > > > information in one place. > > > > > > 1.https://gitlab.com/qemu-project/qemu/-/issues/2224 > > > > > > If I use older cores (like Neoverse-N1 which is default for sbsa-ref) > > > then installer boots fine: > > > I see the same with sbsa-ref using qemu 8.2.1 and the edk2 > > firmware you reference in the qemu issue. > > What made me wonder is that it feels like error on OpenBSD side. > 7.3 release boots, 7.4 and later do not.
I tracked it down to PAC. https://github.com/openbsd/src/commit/4171e492c627a295b38565e1f04e0b7ba62913f8 If I disable it, qemu sbsa-ref with cpu max boots. diff --git sys/arch/arm64/arm64/cpu.c sys/arch/arm64/arm64/cpu.c index b11bf3699ac..1fa647ff6b5 100644 --- sys/arch/arm64/arm64/cpu.c +++ sys/arch/arm64/arm64/cpu.c @@ -970,24 +970,29 @@ cpu_attach(struct device *parent, struct device *dev, void *aux) /* * Lenovo X13s ships with broken EL2 firmware that * hangs the machine if we enable PAuth. */ if (hw_vendor && hw_prod && strcmp(hw_vendor, "LENOVO") == 0) { if (strncmp(hw_prod, "21BX", 4) == 0 || strncmp(hw_prod, "21BY", 4) == 0) { cpu_id_aa64isar1 &= ~ID_AA64ISAR1_APA_MASK; cpu_id_aa64isar1 &= ~ID_AA64ISAR1_GPA_MASK; } } + if (hw_vendor && strcmp(hw_vendor, "QEMU") == 0) { + cpu_id_aa64isar1 &= ~ID_AA64ISAR1_APA_MASK; + cpu_id_aa64isar1 &= ~ID_AA64ISAR1_GPA_MASK; + } + cpu_identify(ci); if (OF_getproplen(ci->ci_node, "clocks") > 0) { cpu_node = ci->ci_node; cpu_cpuspeed = cpu_clockspeed; } cpu_init(); #ifdef MULTIPROCESSOR } #endif
