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* add host ticks function for RISC-V

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* target/i386: Export GDS_NO bit
 * target/i386: add support for bit 56 of MSR_IA32_VMX_BASIC
 * first part of audiodev cleanups
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* add host ticks function for RISC-V
* target/i386: Export GDS_NO bit
* target/i386: add support for bit 56 of MSR_IA32_VMX_BASIC
* first part of audiodev cleanups

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# gpg: Signature made Fri 22 Sep 2023 11:40:53 EDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  vl: recognize audiodev groups in configuration files
  tests/qtest: Specify audiodev= and -audiodev
  hw/display/xlnx_dp.c: Add audiodev property
  hw/audio/lm4549: Add errp error reporting to init function
  hw/audio: Simplify hda audio init
  hw/input/tsc210x: Extract common init code into new function
  qemu/timer: Add host ticks function for RISC-V
  target/i386: Export GDS_NO bit to guests
  target/i386: enumerate bit 56 of MSR_IA32_VMX_BASIC

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2023-09-25 10:09:38 -04:00
commit 29578f5757
18 changed files with 115 additions and 74 deletions
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22
include/qemu/timer.h
View file

@ -979,6 +979,28 @@ static inline int64_t cpu_get_host_ticks(void)
return cur - ofs;
}
#elif defined(__riscv) && __riscv_xlen == 32
static inline int64_t cpu_get_host_ticks(void)
{
uint32_t lo, hi, tmph;
do {
asm volatile("RDTIMEH %0\n\t"
"RDTIME %1\n\t"
"RDTIMEH %2"
: "=r"(hi), "=r"(lo), "=r"(tmph));
} while (unlikely(tmph != hi));
return lo | (uint64_t)hi << 32;
}
#elif defined(__riscv) && __riscv_xlen > 32
static inline int64_t cpu_get_host_ticks(void)
{
int64_t val;
asm volatile("RDTIME %0" : "=r"(val));
return val;
}
#else
/* The host CPU doesn't have an easily accessible cycle counter.
Just return a monotonically increasing value. This will be