mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
67730e6c53
Use the kernel's canonical $(ARCH) paths instead of the raw target triple for KVM selftests directories. KVM selftests are quite nearly the only place in the entire kernel that using the target triple for directories, tools/testing/selftests/drivers/s390x being the lone holdout. Using the kernel's preferred nomenclature eliminates the minor, but annoying, friction of having to translate to KVM's selftests directories, e.g. for pattern matching, opening files, running selftests, etc. Opportunsitically delete file comments that reference the full path of the file, as they are obviously prone to becoming stale, and serve no known purpose. Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* s390x processor specific defines
|
|
*/
|
|
#ifndef SELFTEST_KVM_PROCESSOR_H
|
|
#define SELFTEST_KVM_PROCESSOR_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
/* Bits in the region/segment table entry */
|
|
#define REGION_ENTRY_ORIGIN ~0xfffUL /* region/segment table origin */
|
|
#define REGION_ENTRY_PROTECT 0x200 /* region protection bit */
|
|
#define REGION_ENTRY_NOEXEC 0x100 /* region no-execute bit */
|
|
#define REGION_ENTRY_OFFSET 0xc0 /* region table offset */
|
|
#define REGION_ENTRY_INVALID 0x20 /* invalid region table entry */
|
|
#define REGION_ENTRY_TYPE 0x0c /* region/segment table type mask */
|
|
#define REGION_ENTRY_LENGTH 0x03 /* region third length */
|
|
|
|
/* Bits in the page table entry */
|
|
#define PAGE_INVALID 0x400 /* HW invalid bit */
|
|
#define PAGE_PROTECT 0x200 /* HW read-only bit */
|
|
#define PAGE_NOEXEC 0x100 /* HW no-execute bit */
|
|
|
|
/* Page size definitions */
|
|
#define PAGE_SHIFT 12
|
|
#define PAGE_SIZE BIT_ULL(PAGE_SHIFT)
|
|
#define PAGE_MASK (~(PAGE_SIZE - 1))
|
|
|
|
/* Is there a portable way to do this? */
|
|
static inline void cpu_relax(void)
|
|
{
|
|
barrier();
|
|
}
|
|
|
|
/* Get the instruction length */
|
|
static inline int insn_length(unsigned char code)
|
|
{
|
|
return ((((int)code + 64) >> 7) + 1) << 1;
|
|
}
|
|
|
|
#endif
|