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Helge Deller 20eee6cb3d target/hppa: Fix PSW V-bit packaging in cpu_hppa_get for hppa64 
While adding hppa64 support, the psw_v variable got extended from 32 to 64
bits.  So, when packaging the PSW-V bit from the psw_v variable for interrupt
processing, check bit 31 instead the 63th (sign) bit.

This fixes a hard to find Linux kernel boot issue where the loss of the PSW-V
bit due to an ITLB interruption in the middle of a series of ds/addc
instructions (from the divU milicode library) generated the wrong division
result and thus triggered a Linux kernel crash.

Link: https://lore.kernel.org/lkml/718b8afe-222f-4b3a-96d3-93af0e4ceff1@roeck-us.net/
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 931adff314 ("target/hppa: Update cpu_hppa_get/put_psw for hppa64")
Cc: qemu-stable@nongnu.org # v8.2+
(cherry picked from commit ead5078cf1)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-09-05 22:48:29 +03:00
..
alpha target: Set TCGCPUOps::cpu_exec_halt to target's has_work implementation 2024-07-11 11:41:34 +01:00
arm target/arm: Fix usage of MMU indexes when EL3 is AArch32 2024-08-13 11:44:53 +01:00
avr target: Set TCGCPUOps::cpu_exec_halt to target's has_work implementation 2024-07-11 11:41:34 +01:00
cris target: Set TCGCPUOps::cpu_exec_halt to target's has_work implementation 2024-07-11 11:41:34 +01:00
hexagon target/hexagon: don't look for static glib 2024-08-13 11:33:31 +02:00
hppa target/hppa: Fix PSW V-bit packaging in cpu_hppa_get for hppa64 2024-09-05 22:48:29 +03:00
i386 target/i386: Fix tss access size in switch_tss_ra 2024-08-21 09:11:26 +10:00
loongarch target/loongarch: Fix helper_lddir() a CID INTEGER_OVERFLOW issue 2024-07-24 16:52:18 +08:00
m68k target/m68k: avoid shift into sign bit in dump_address_map() 2024-07-29 16:58:58 +01:00
microblaze target: Set TCGCPUOps::cpu_exec_halt to target's has_work implementation 2024-07-11 11:41:34 +01:00
mips target/mips: Load PTE as DATA 2024-08-20 00:38:48 +02:00
openrisc target: Set TCGCPUOps::cpu_exec_halt to target's has_work implementation 2024-07-11 11:41:34 +01:00
ppc target/ppc: Remove includes from mmu-book3s-v3.h 2024-07-26 09:51:34 +10:00
riscv target/riscv: Add asserts for out-of-bound access 2024-08-06 14:20:16 +10:00
rx target/rx: Use target_ulong for address in LI 2024-07-28 14:13:05 +10:00
s390x target/s390x: fix build warning (gcc-12 -fsanitize=thread) 2024-08-15 16:33:56 +02:00
sh4 target/sh4: Avoid shift into sign bit in update_itlb_use() 2024-07-29 17:00:20 +01:00
sparc target/sparc: Restrict STQF to sparcv9 2024-08-20 00:49:14 +02:00
tricore target/tricore: Use unsigned types for bitops in helper_eq_b() 2024-07-29 16:57:27 +01:00
xtensa target/xtensa: Correct assert condition in handle_interrupt() 2024-08-01 10:59:01 +01:00
Kconfig meson: make target endianneess available to Kconfig 2024-05-03 15:47:47 +02:00
meson.build exec: Expose 'target_page.h' API to user emulation 2024-04-26 15:28:11 +02:00