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qemu/util
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Paolo Bonzini 7cac7aa704 target/i386/hvf: fix handling of XSAVE-related CPUID bits 
The call to xgetbv() is passing the ecx value for cpuid function 0xD,
index 0. The xgetbv call thus returns false (OSXSAVE is bit 27, which is
well out of the range of CPUID[0xD,0].ECX) and eax is not modified. While
fixing it, cache the whole computation of supported XCR0 bits since it
will be used for more than just CPUID leaf 0xD.

Furthermore, unsupported subleafs of CPUID 0xD (including all those
corresponding to zero bits in host's XCR0) must be hidden; if OSXSAVE
is not set at all, the whole of CPUID leaf 0xD plus the XSAVE bit must
be hidden.

Finally, unconditionally drop XSTATE_BNDREGS_MASK and XSTATE_BNDCSR_MASK;
real hardware will only show them if the MPX bit is set in CPUID;
this is never the case for hvf_get_supported_cpuid() because QEMU's
Hypervisor.framework support does not handle the VMX fields related to
MPX (even in the unlikely possibility that the host has MPX enabled).
So hide those bits in the new cache_host_xcr0().

Cc: Phil Dennis-Jordan <lists@philjordan.eu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-31 18:28:32 +01:00
..
aio-posix.c include: Move QemuLockCnt APIs to their own header 2024-10-15 15:16:17 +01:00
aio-posix.h
aio-wait.c
aio-win32.c include: Move QemuLockCnt APIs to their own header 2024-10-15 15:16:17 +01:00
aiocb.c
async.c include: Move QemuLockCnt APIs to their own header 2024-10-15 15:16:17 +01:00
atomic64.c
base64.c
bitmap.c
bitops.c
block-helpers.c block: Adjust check_block_size() signature 2024-10-18 15:03:35 +02:00
block-helpers.h block: Adjust check_block_size() signature 2024-10-18 15:03:35 +02:00
buffer.c
bufferiszero.c util/bufferiszero: Split out host include files 2024-06-19 12:47:11 -07:00
cacheflush.c
chardev_open.c util/char_dev: Add open_cdev() 2023-12-19 19:03:38 +01:00
compatfd.c
coroutine-sigaltstack.c osdep: set _FORTIFY_SOURCE=2 when optimization is enabled 2023-10-04 09:52:06 -04:00
coroutine-ucontext.c coroutine-ucontext: Save fake stack for pooled coroutine 2024-01-22 11:00:12 -05:00
coroutine-windows.c
cpuinfo-aarch64.c util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD 2024-07-30 07:59:23 +10:00
cpuinfo-i386.c target/i386/hvf: fix handling of XSAVE-related CPUID bits 2024-10-31 18:28:32 +01:00
cpuinfo-loongarch.c util/loongarch64: Detect LASX vector support 2024-06-19 10:55:12 -07:00
cpuinfo-ppc.c util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD 2024-07-30 07:59:23 +10:00
cpuinfo-riscv.c util: Add RISC-V vector extension probe in cpuinfo 2024-10-22 11:57:25 -07:00
crc32c.c
crc-ccitt.c
cutils.c util/cutils: Remove unused qemu_get_exec_dir 2024-09-20 10:04:34 +03:00
dbus.c
defer-call.c util/defer-call: move defer_call() to util/ 2023-10-31 15:41:42 +01:00
drm.c
envlist.c envlist: Remove unused envlist_parse 2024-09-20 10:00:27 +03:00
error-report.c Remove glib compatibility code that is not required anymore 2024-05-14 12:46:39 +02:00
error.c
event_notifier-posix.c
event_notifier-win32.c
fdmon-epoll.c include: Move QemuLockCnt APIs to their own header 2024-10-15 15:16:17 +01:00
fdmon-io_uring.c remove unnecessary casts from uintptr_t 2024-01-18 10:43:51 +01:00
fdmon-poll.c
fifo8.c fifo8: introduce fifo8_peek() function 2024-09-13 20:11:13 +02:00
filemonitor-inotify.c util/filemonitor-inotify.c: spelling fix: kenel 2023-11-15 12:06:05 +03:00
filemonitor-stub.c
getauxval.c util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD 2024-07-30 07:59:23 +10:00
guest-random.c util/guest-random: Clean up global variable shadowing 2023-10-06 13:27:48 +02:00
hbitmap.c qapi/crypto: Rename QCryptoHashAlgorithm to *Algo, and drop prefix 2024-09-10 14:02:16 +02:00
hexdump.c util/hexdump: Inline g_string_append_printf "%02x" 2024-06-05 12:14:20 -07:00
host-utils.c
id.c
int128.c
interval-tree.c
iov.c util/iov: Introduce iov_send_recv_with_flags() 2024-10-10 12:33:31 +01:00
iova-tree.c util/iova-tree: Remove deadcode 2024-10-08 15:28:55 -04:00
keyval.c
lockcnt.c include: Move QemuLockCnt APIs to their own header 2024-10-15 15:16:17 +01:00
log.c plugins: Replace pr_ops with a proper debug dump flag 2024-04-30 16:12:05 -07:00
main-loop.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
memalign.c
memfd.c util/memfd: report potential errors on free 2024-10-14 17:34:09 +04:00
meson.build util/cpuinfo-riscv: Support host/cpuinfo.h for riscv 2024-07-03 10:24:12 -07:00
mmap-alloc.c
module.c module: Prevent crash by resetting local_err in module_load_qom_all() 2024-08-13 16:35:47 +02:00
notify.c notify: pass error to notifier with return 2024-02-28 11:31:28 +08:00
nvdimm-utils.c
osdep.c migration: Add direct-io parameter 2024-06-21 09:47:22 -03:00
oslib-posix.c qemu/osdep: Add excluded fd parameter to qemu_close_all_open_fd() 2024-08-05 08:21:59 +10:00
oslib-win32.c oslib-posix: initialize backend memory objects in parallel 2024-02-06 08:15:22 +01:00
path.c
qdist.c
qemu-co-shared-resource.c util/co-shared-resource: Remove unused co_try_get_from_shres 2024-09-30 10:53:18 +03:00
qemu-co-timeout.c
qemu-config.c util/qemu-config: Extract QMP commands to qemu-config-qmp.c 2024-04-18 11:17:27 +02:00
qemu-coroutine-io.c
qemu-coroutine-lock.c
qemu-coroutine-sleep.c
qemu-coroutine.c util/coroutine: fix -Werror=maybe-uninitialized false-positive 2024-10-02 16:14:29 +04:00
qemu-option.c qapi: Inline and remove QERR_INVALID_PARAMETER definition 2024-04-24 09:50:58 +02:00
qemu-print.c
qemu-progress.c
qemu-sockets.c util: don't set SO_REUSEADDR on client sockets 2024-10-22 11:44:23 +01:00
qemu-thread-common.h
qemu-thread-posix.c
qemu-thread-win32.c
qemu-timer-common.c
qemu-timer.c -Werror=maybe-uninitialized fixes 2024-10-03 10:32:54 +01:00
qht.c
qsp.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
qtree.c
range.c util/range.c: spelling fix: inbetween 2023-11-15 12:06:05 +03:00
rcu.c Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
readline.c util/readline: Add C-u shortcut 2024-06-19 12:42:03 +02:00
reserved-region.c util/reserved-region: Add new ReservedRegion helpers 2023-11-03 09:20:31 +01:00
selfmap.c
stats64.c
sys_membarrier.c
systemd.c
thread-context.c
thread-pool.c virtio: use defer_call() in virtio_irqfd_notify() 2023-10-31 15:42:14 +01:00
throttle.c
timed-average.c license: Simplify GPL-2.0-or-later license descriptions 2024-09-20 10:11:59 +03:00
trace-events
trace.h
transactions.c
unicode.c
userfaultfd.c util/userfaultfd: Remove unused uffd_poll_events 2024-10-08 15:28:55 -04:00
uuid.c util/uuid: Add UUID_STR_LEN definition 2023-11-03 09:20:31 +01:00
vfio-helpers.c
vhost-user-server.c vhost-user-server: do not set memory fd non-blocking 2024-07-02 09:27:56 -04:00
yank.c qapi: Fix dangling references to docs/devel/qapi-code-gen.txt 2024-01-26 07:04:53 +01:00