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authorPaolo Bonzini <pbonzini@redhat.com>2025-09-30 13:23:44 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2025-09-30 13:23:44 -0400
commit6a137497178720da8f454c81d2e9fcebc3137b51 (patch)
tree3ec241ebc92d382cab04d18fcd0fbbd4e0b52ef0 /arch/um/os-Linux
parent924ccf1d093a0c688eba9da1adff9a290d7bd7d8 (diff)
parent66e2d96b1c5875122bfb94239989d832ccf51477 (diff)
Merge tag 'loongarch-kvm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD
LoongArch KVM changes for v6.18 1. Add PTW feature detection on new hardware. 2. Add sign extension with kernel MMIO/IOCSR emulation. 3. Improve in-kernel IPI emulation. 4. Improve in-kernel PCH-PIC emulation. 5. Move kvm_iocsr tracepoint out of generic code.
Diffstat (limited to 'arch/um/os-Linux')
-rw-r--r--arch/um/os-Linux/file.c2
-rw-r--r--arch/um/os-Linux/util.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 617886d1fb1e..21f0e50fb1df 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -535,7 +535,7 @@ ssize_t os_rcv_fd_msg(int fd, int *fds, unsigned int n_fds,
cmsg->cmsg_type != SCM_RIGHTS)
return n;
- memcpy(fds, CMSG_DATA(cmsg), cmsg->cmsg_len);
+ memcpy(fds, CMSG_DATA(cmsg), cmsg->cmsg_len - CMSG_LEN(0));
return n;
}
diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index 4193e04d7e4a..e3ad71a0d13c 100644
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -20,8 +20,7 @@
void stack_protections(unsigned long address)
{
- if (mprotect((void *) address, UM_THREAD_SIZE,
- PROT_READ | PROT_WRITE | PROT_EXEC) < 0)
+ if (mprotect((void *) address, UM_THREAD_SIZE, PROT_READ | PROT_WRITE) < 0)
panic("protecting stack failed, errno = %d", errno);
}