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hw/intc/loongson_ipi: Access memory in little endian

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Loongson IPI is only available in little-endian,
so use that to access the guest memory (in case
we run on a big-endian host).

Cc: qemu-stable@nongnu.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Fixes: f6783e3438 ("hw/loongarch: Add LoongArch ipi interrupt support")
[PMD: Extracted from bigger commit, added commit description]
Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Tested-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240718133312.10324-3-philmd@linaro.org>
(cherry picked from commit 2465c89fb9)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: fixups for 8.2, for lack of:
 v9.0.0-583-g91d0b151de4c "hw/intc/loongson_ipi: Implement IOCSR address space for MIPS"
 v9.0.0-582-gb4a12dfc2132 "hw/intc/loongarch_ipi: Rename as loongson_ipi"
 v8.2.0-545-gfdd6ee0b7653 "hw/intc/loongarch_ipi: Use MemTxAttrs interface for ipi ops")
This commit is contained in:
Bibo Mao 2024-07-16 23:41:23 +02:00 committed by Michael Tokarev
parent d699ffd0eb
commit 780a274406
1 changed files with 5 additions and 4 deletions
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9
hw/intc/loongarch_ipi.c
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@ -12,6 +12,7 @@
#include "qapi/error.h"
#include "qemu/log.h"
#include "exec/address-spaces.h"
#include "exec/memory.h"
#include "hw/loongarch/virt.h"
#include "migration/vmstate.h"
#include "target/loongarch/internals.h"
@ -61,8 +62,8 @@ static void send_ipi_data(CPULoongArchState *env, uint64_t val, hwaddr addr)
* if the mask is 0, we need not to do anything.
*/
if ((val >> 27) & 0xf) {
data = address_space_ldl(&env->address_space_iocsr, addr,
MEMTXATTRS_UNSPECIFIED, NULL);
data = address_space_ldl_le(&env->address_space_iocsr, addr,
MEMTXATTRS_UNSPECIFIED, NULL);
for (i = 0; i < 4; i++) {
/* get mask for byte writing */
if (val & (0x1 << (27 + i))) {
@ -73,8 +74,8 @@ static void send_ipi_data(CPULoongArchState *env, uint64_t val, hwaddr addr)
data &= mask;
data |= (val >> 32) & ~mask;
address_space_stl(&env->address_space_iocsr, addr,
data, MEMTXATTRS_UNSPECIFIED, NULL);
address_space_stl_le(&env->address_space_iocsr, addr,
data, MEMTXATTRS_UNSPECIFIED, NULL);
}
static int archid_cmp(const void *a, const void *b)