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Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model
From: |
David Hildenbrand |
Subject: |
Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800 |
Date: |
Thu, 1 Jun 2017 10:38:49 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 |
On 01.06.2017 00:01, Aurelien Jarno wrote:
> At the same time fix the TCG version of get_max_cpu_model to return the
> maximum model like on KVM. Remove the ETF2 and long-displacement
I don't understand the part
"fix the TCG version of get_max_cpu_model to return the maximum model
like on KVM".
Can you elaborate?
> facilities from the additional features as it is included in the z800.
>
> Signed-off-by: Aurelien Jarno <address@hidden>
> ---
> target/s390x/cpu_models.c | 13 ++++++-------
> 1 file changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
> index fc3cb25cc3..c13bbd852c 100644
> --- a/target/s390x/cpu_models.c
> +++ b/target/s390x/cpu_models.c
> @@ -668,8 +668,6 @@ static void add_qemu_cpu_model_features(S390FeatBitmap
> fbm)
> static const int feats[] = {
> S390_FEAT_STFLE,
> S390_FEAT_EXTENDED_IMMEDIATE,
> - S390_FEAT_EXTENDED_TRANSLATION_2,
> - S390_FEAT_LONG_DISPLACEMENT,
> S390_FEAT_LONG_DISPLACEMENT_FAST,
> S390_FEAT_ETF2_ENH,
> S390_FEAT_STORE_CLOCK_FAST,
> @@ -696,9 +694,9 @@ static S390CPUModel *get_max_cpu_model(Error **errp)
> if (kvm_enabled()) {
> kvm_s390_get_host_cpu_model(&max_model, errp);
> } else {
> - /* TCG emulates a z900 (with some optional additional features) */
> - max_model.def = &s390_cpu_defs[0];
> - bitmap_copy(max_model.features, max_model.def->default_feat,
> + /* TCG emulates a z800 (with some optional additional features) */
> + max_model.def = s390_find_cpu_def(0x2066, 7, 3, NULL);
> + bitmap_copy(max_model.features, max_model.def->full_feat,
> S390_FEAT_MAX);
> add_qemu_cpu_model_features(max_model.features);
> }
> @@ -956,8 +954,9 @@ static void s390_qemu_cpu_model_initfn(Object *obj)
> S390CPU *cpu = S390_CPU(obj);
>
> cpu->model = g_malloc0(sizeof(*cpu->model));
> - /* TCG emulates a z900 (with some optional additional features) */
> - memcpy(&s390_qemu_cpu_defs, &s390_cpu_defs[0],
> sizeof(s390_qemu_cpu_defs));
> + /* TCG emulates a z800 (with some optional additional features) */
> + memcpy(&s390_qemu_cpu_defs, s390_find_cpu_def(0x2066, 7, 3, NULL),
> + sizeof(s390_qemu_cpu_defs));
No changing the qemu model without compatibility handling.
Thanks!
--
Thanks,
David
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800,
David Hildenbrand <=
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, David Hildenbrand, 2017/06/01
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, Aurelien Jarno, 2017/06/01
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, Thomas Huth, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, David Hildenbrand, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, Aurelien Jarno, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, David Hildenbrand, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, Thomas Huth, 2017/06/02
- Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, David Hildenbrand, 2017/06/02
Re: [Qemu-devel] [PATCH v3 30/30] target/s390x: update maximum TCG model to z800, Aurelien Jarno, 2017/06/01