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[PATCH v2 3/7] linux-user/elfload: Rename ARM_COMMPAGE to HI_COMMPAGE
From: |
Richard Henderson |
Subject: |
[PATCH v2 3/7] linux-user/elfload: Rename ARM_COMMPAGE to HI_COMMPAGE |
Date: |
Mon, 20 Dec 2021 18:50:08 -0800 |
Arm will no longer be the only target requiring a commpage,
but it will continue to be the only target placing the page
at the high end of the address space.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/elfload.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 767f54c76d..d34cd4fe43 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -390,11 +390,11 @@ enum {
/* The commpage only exists for 32 bit kernels */
-#define ARM_COMMPAGE (intptr_t)0xffff0f00u
+#define HI_COMMPAGE (intptr_t)0xffff0f00u
static bool init_guest_commpage(void)
{
- void *want = g2h_untagged(ARM_COMMPAGE & -qemu_host_page_size);
+ void *want = g2h_untagged(HI_COMMPAGE & -qemu_host_page_size);
void *addr = mmap(want, qemu_host_page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
@@ -2160,8 +2160,8 @@ static abi_ulong create_elf_tables(abi_ulong p, int argc,
int envc,
return sp;
}
-#ifndef ARM_COMMPAGE
-#define ARM_COMMPAGE 0
+#ifndef HI_COMMPAGE
+#define HI_COMMPAGE 0
#define init_guest_commpage() true
#endif
@@ -2361,7 +2361,7 @@ static void pgb_static(const char *image_name, abi_ulong
orig_loaddr,
}
loaddr &= -align;
- if (ARM_COMMPAGE) {
+ if (HI_COMMPAGE) {
/*
* Extend the allocation to include the commpage.
* For a 64-bit host, this is just 4GiB; for a 32-bit host we
@@ -2372,14 +2372,14 @@ static void pgb_static(const char *image_name,
abi_ulong orig_loaddr,
if (sizeof(uintptr_t) == 8 || loaddr >= 0x80000000u) {
hiaddr = (uintptr_t) 4 << 30;
} else {
- offset = -(ARM_COMMPAGE & -align);
+ offset = -(HI_COMMPAGE & -align);
}
}
addr = pgb_find_hole(loaddr, hiaddr - loaddr, align, offset);
if (addr == -1) {
/*
- * If ARM_COMMPAGE, there *might* be a non-consecutive allocation
+ * If HI_COMMPAGE, there *might* be a non-consecutive allocation
* that can satisfy both. But as the normal arm32 link base address
* is ~32k, and we extend down to include the commpage, making the
* overhead only ~96k, this is unlikely.
@@ -2400,7 +2400,7 @@ static void pgb_dynamic(const char *image_name, long
align)
* All we need is a commpage that satisfies align.
* If we do not need a commpage, leave guest_base == 0.
*/
- if (ARM_COMMPAGE) {
+ if (HI_COMMPAGE) {
uintptr_t addr, commpage;
/* 64-bit hosts should have used reserved_va. */
@@ -2410,7 +2410,7 @@ static void pgb_dynamic(const char *image_name, long
align)
* By putting the commpage at the first hole, that puts guest_base
* just above that, and maximises the positive guest addresses.
*/
- commpage = ARM_COMMPAGE & -align;
+ commpage = HI_COMMPAGE & -align;
addr = pgb_find_hole(commpage, -commpage, align, 0);
assert(addr != -1);
guest_base = addr;
--
2.25.1
- [PATCH v2 0/7] linux-user: nios2 fixes, Richard Henderson, 2021/12/20
- [PATCH v2 1/7] linux-user/nios2: Properly emulate EXCP_TRAP, Richard Henderson, 2021/12/20
- [PATCH v2 2/7] linux-user/nios2: Fixes for signal frame setup, Richard Henderson, 2021/12/20
- [PATCH v2 3/7] linux-user/elfload: Rename ARM_COMMPAGE to HI_COMMPAGE,
Richard Henderson <=
- [PATCH v2 4/7] linux-user/nios2: Map a real kuser page, Richard Henderson, 2021/12/20
- [PATCH v2 5/7] linux-user/nios2: Fix EA vs PC confusion, Richard Henderson, 2021/12/20
- [PATCH v2 7/7] linux-user/nios2: Use set_sigmask in do_rt_sigreturn, Richard Henderson, 2021/12/20
- [PATCH v2 6/7] linux-user/nios2: Fix sigmask in setup_rt_frame, Richard Henderson, 2021/12/20