Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-05-30 05:16:47 +08:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

arch: arm64: Do not set cntfrq_el0 in qemu_boot.c

Browse Source 
Summary:
- During testing with qemu + kvm, I noticed that nuttx hangs
  when setting cntfrq_el0. With qemu + kvm, it starts from
  EL1 because we can not specify virtualization=on
- However, I noticed that it works without setting cntfrq_el0
- This commit fixes this issue

Impact:
- None

Testing:
- Tested with qemu-7.1 (both with kvm and without kvm)
- NOTE: to work with kvm, GICv2 must be used.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa
2023-06-29 18:18:47 +09:00
committed by Xiang Xiao
parent 7af151aa51
commit cf6a134684
2 changed files with 0 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm64/src/qemu/qemu_boot.c
-3
View File
@@ -138,9 +138,6 @@ uint64_t arm64_get_mpid(int cpu)
void arm64_el_init(void) void arm64_el_init(void)
{ {
write_sysreg(CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC, cntfrq_el0);
ARM64_ISB();
} }
/**************************************************************************** /****************************************************************************
arch/arm64/src/qemu/qemu_boot.h
-2
View File
@@ -36,8 +36,6 @@
* Pre-processor Definitions * Pre-processor Definitions
****************************************************************************/ ****************************************************************************/
#define CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC 62500000
/**************************************************************************** /****************************************************************************
* Public Function Prototypes * Public Function Prototypes
****************************************************************************/ ****************************************************************************/