From 954ba600ffb78b596d9aa95c8b58c8a9adbe4035 Mon Sep 17 00:00:00 2001
From: Helmut Grohne <helmut@subdivi.de>
Date: Wed, 29 Mar 2023 20:21:19 +0200
Subject: debvm-run: massively speed up tcg emulation of arm cpus

pauth emulation is very intensive on the CPU and thus there is a
non-cryptographic alternative that provides a speedup of 3 to 4.

https://qemu-project.gitlab.io/qemu/system/arm/cpu-features.html#tcg-vcpu-features

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Emanuele Rocca <ema@debian.org>
Tested-by: Emanuele Rocca <ema@debian.org>
Closes: #1033643
---
 bin/debvm-run | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'bin/debvm-run')

diff --git a/bin/debvm-run b/bin/debvm-run
index 7da7cd0..6a91ba9 100755
--- a/bin/debvm-run
+++ b/bin/debvm-run
@@ -269,13 +269,13 @@ case "$KERNELARCH" in
 		MACHINE="type=q35"
 	;;
 	arm|armel|armhf)
-		CPU=max
+		CPU=max,pauth-impdef=on
 		MACHINE="type=virt"
 		MAX_SMP=8
 	;;
 	arm64)
 		QEMU=qemu-system-aarch64
-		CPU=max
+		CPU=max,pauth-impdef=on
 		MACHINE="type=virt,gic-version=max"
 	;;
 	m68k)
-- 
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