John Baldwin a3f2a9c57e Clear the upper 32-bits of registers in x86_emulate_cpuid(). ... Per the Intel manuals, CPUID is supposed to unconditionally zero the upper 32 bits of the involved (rax/rbx/rcx/rdx) registers. Previously, the emulation would cast pointers to the 64-bit register values down to `uint32_t`, which while properly manipulating the lower bits, would leave any garbage in the upper bits uncleared. While no existing guest OSes seem to stumble over this in practice, the bhyve emulation should match x86 expectations. This was discovered through alignment warnings emitted by gcc9, while testing it against SmartOS/bhyve. SmartOS bug: https://smartos.org/bugview/OS-8168 Submitted by: Patrick Mooney Reviewed by: rgrimes Differential Revision: https://reviews.freebsd.org/D24727		2020-10-01 16:45:11 +00:00
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acpica	amd64: clean up empty lines in .c and .h files	2020-09-01 21:16:54 +00:00
amd64	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
cloudabi32	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
cloudabi64	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
conf	Rename kernel option ACPI_DMAR to IOMMU.	2020-09-29 20:29:07 +00:00
ia32	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
include	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
linux	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
linux32	Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead.	2020-09-27 18:47:06 +00:00
pci	pci_cfgreg.c: Use io port config access for early boot time.	2019-04-09 18:07:17 +00:00
sgx	amd64: clean up empty lines in .c and .h files	2020-09-01 21:16:54 +00:00
vmm	Clear the upper 32-bits of registers in x86_emulate_cpuid().	2020-10-01 16:45:11 +00:00
Makefile