From c783eab8a3770703a39bbbd7edd23af7b9cb8f14 Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Wed, 12 May 2021 19:15:48 +0200 Subject: [PATCH 35/39] pc-bios/s390-ccw: Fix inline assembly for older versions of Clang MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Jon Maloy RH-MergeRequest: 24: v7: Add support for building qemu-kvm with clang and safe-stack RH-Commit: [8/11] 9a69c7705b8128b4098f818c6b672d484e459c83 (jmaloy/qemu-kvm-centos-jon) RH-Bugzilla: 1939509 1940132 RH-Acked-by: Danilo Cesar Lemes de Paula RH-Acked-by: Thomas Huth RH-Acked-by: Cornelia Huck Clang versions before v11.0 insist on having the %rX or %cX register names instead of just a number. Since our Travis-CI is currently still using Clang v6.0, we have to fix this to avoid failing jobs. Message-Id: <20210512171550.476130-2-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Thomas Huth (cherry picked from commit 052b66e7211af64964e005126eaa3c944b296b0e) Signed-off-by: Jon Maloy Signed-off-by: Miroslav Rezanina --- pc-bios/s390-ccw/helper.h | 2 +- pc-bios/s390-ccw/jump2ipl.c | 4 ++-- pc-bios/s390-ccw/menu.c | 8 ++++---- pc-bios/s390-ccw/virtio.c | 2 +- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/pc-bios/s390-ccw/helper.h b/pc-bios/s390-ccw/helper.h index dfcfea0ff0..3d0731c4c6 100644 --- a/pc-bios/s390-ccw/helper.h +++ b/pc-bios/s390-ccw/helper.h @@ -31,7 +31,7 @@ static inline void *u32toptr(uint32_t n) static inline void yield(void) { - asm volatile ("diag 0,0,0x44" + asm volatile ("diag %%r0,%%r0,0x44" : : : "memory", "cc"); } diff --git a/pc-bios/s390-ccw/jump2ipl.c b/pc-bios/s390-ccw/jump2ipl.c index 73e4367e09..78f5f46533 100644 --- a/pc-bios/s390-ccw/jump2ipl.c +++ b/pc-bios/s390-ccw/jump2ipl.c @@ -64,8 +64,8 @@ void jump_to_IPL_code(uint64_t address) * We use the load normal reset to keep r15 unchanged. jump_to_IPL_2 * can then use r15 as its stack pointer. */ - asm volatile("lghi 1,1\n\t" - "diag 1,1,0x308\n\t" + asm volatile("lghi %%r1,1\n\t" + "diag %%r1,%%r1,0x308\n\t" : : : "1", "memory"); panic("\n! IPL returns !\n"); } diff --git a/pc-bios/s390-ccw/menu.c b/pc-bios/s390-ccw/menu.c index de8260a5d6..d601952d3e 100644 --- a/pc-bios/s390-ccw/menu.c +++ b/pc-bios/s390-ccw/menu.c @@ -36,9 +36,9 @@ static inline void enable_clock_int(void) uint64_t tmp = 0; asm volatile( - "stctg 0,0,%0\n" + "stctg %%c0,%%c0,%0\n" "oi 6+%0, 0x8\n" - "lctlg 0,0,%0" + "lctlg %%c0,%%c0,%0" : : "Q" (tmp) : "memory" ); } @@ -48,9 +48,9 @@ static inline void disable_clock_int(void) uint64_t tmp = 0; asm volatile( - "stctg 0,0,%0\n" + "stctg %%c0,%%c0,%0\n" "ni 6+%0, 0xf7\n" - "lctlg 0,0,%0" + "lctlg %%c0,%%c0,%0" : : "Q" (tmp) : "memory" ); } diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c index ab49840db8..5d2c6e3381 100644 --- a/pc-bios/s390-ccw/virtio.c +++ b/pc-bios/s390-ccw/virtio.c @@ -54,7 +54,7 @@ static long kvm_hypercall(unsigned long nr, unsigned long param1, register ulong r_param3 asm("4") = param3; register long retval asm("2"); - asm volatile ("diag 2,4,0x500" + asm volatile ("diag %%r2,%%r4,0x500" : "=d" (retval) : "d" (r_nr), "0" (r_param1), "r"(r_param2), "d"(r_param3) : "memory", "cc"); -- 2.27.0