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Date: Mon, 18 Dec 2017 15:31:55 -0800 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: lianglihao@...wei.com Cc: guohanjun@...wei.com, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, lihao.liang@...il.com, will.deacon@....com Subject: Re: [PATCH v2] rcutorture: Add basic ARM64 support to run scripts On Tue, Dec 12, 2017 at 05:19:25PM +0800, lianglihao@...wei.com wrote: > From: Lihao Liang <lianglihao@...wei.com> > > This commit adds support of the qemu command qemu-system-aarch64 > to rcutorture. > > Signed-off-by: Lihao Liang <lianglihao@...wei.com> Queued for further review and testing, thank you! (This one has been on my list for quite some time.) Thanx, Paul > --- > This commit is against RCU's git tree rcu/dev branch > > commit 505b61b2ec1d ("EXP: rcu: Add debugging info to other assertion") > > Note that the max CPUs supported by qemu machine 'virt' is 8 so the value of > CONFIG_NR_CPUS in some test configuration files needs to be adjusted. > > tools/testing/selftests/rcutorture/bin/functions.sh | 17 +++++++++++++++-- > 1 file changed, 15 insertions(+), 2 deletions(-) > > diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh > index 07a1377..0541d10 100644 > --- a/tools/testing/selftests/rcutorture/bin/functions.sh > +++ b/tools/testing/selftests/rcutorture/bin/functions.sh > @@ -136,6 +136,9 @@ identify_boot_image () { > qemu-system-x86_64|qemu-system-i386) > echo arch/x86/boot/bzImage > ;; > + qemu-system-aarch64) > + echo arch/arm64/boot/Image > + ;; > *) > echo vmlinux > ;; > @@ -158,6 +161,9 @@ identify_qemu () { > elif echo $u | grep -q "Intel 80386" > then > echo qemu-system-i386 > + elif echo $u | grep -q aarch64 > + then > + echo qemu-system-aarch64 > elif uname -a | grep -q ppc64 > then > echo qemu-system-ppc64 > @@ -176,16 +182,20 @@ identify_qemu () { > # Output arguments for the qemu "-append" string based on CPU type > # and the TORTURE_QEMU_INTERACTIVE environment variable. > identify_qemu_append () { > + local console=ttyS0 > case "$1" in > qemu-system-x86_64|qemu-system-i386) > echo noapic selinux=0 initcall_debug debug > ;; > + qemu-system-aarch64) > + console=ttyAMA0 > + ;; > esac > if test -n "$TORTURE_QEMU_INTERACTIVE" > then > echo root=/dev/sda > else > - echo console=ttyS0 > + echo console=$console > fi > } > > @@ -197,6 +207,9 @@ identify_qemu_args () { > case "$1" in > qemu-system-x86_64|qemu-system-i386) > ;; > + qemu-system-aarch64) > + echo -M virt -cpu host > + ;; > qemu-system-ppc64) > echo -enable-kvm -M pseries -nodefaults > echo -device spapr-vscsi > @@ -254,7 +267,7 @@ specify_qemu_cpus () { > echo $2 > else > case "$1" in > - qemu-system-x86_64|qemu-system-i386) > + qemu-system-x86_64|qemu-system-i386|qemu-system-aarch64) > echo $2 -smp $3 > ;; > qemu-system-ppc64) > -- > 2.7.4 >
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