From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex =?utf-8?Q?Benn=C3=A9e?= Subject: Re: [PATCH v3 0/3] KVM: arm64: single step emulation instructions Date: Tue, 21 Nov 2017 12:43:12 +0000 Message-ID: <873757yf8f.fsf@linaro.org> References: <20171116153921.21991-1-alex.bennee@linaro.org> <20171120154131.GO28855@cbox> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: kvm@vger.kernel.org, julien.thierry@arm.com, marc.zyngier@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu To: Christoffer Dall Return-path: In-reply-to: <20171120154131.GO28855@cbox> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org CkNocmlzdG9mZmVyIERhbGwgPGNkYWxsQGxpbmFyby5vcmc+IHdyaXRlczoKCj4gSGkgQWxleCwK Pgo+IE9uIFRodSwgTm92IDE2LCAyMDE3IGF0IDAzOjM5OjE4UE0gKzAwMDAsIEFsZXggQmVubsOp ZSB3cm90ZToKPj4gSGksCj4+Cj4+IFRoaXMgaXMgcmV2IDMgb2YgdGhlIHNlcmllcywgcHJhY3Rp Y2FsbHkgdGhlIHNhbWUgdGhhbiByZXYgMiBidXQgZml4ZWQKPj4gYSByZXR1cm4gMS0+MCBpbiB0 aGUga3ZtX3J1biBsb29wIHRoYXQgSnVsaWVuIGNhdWdodC4gSSd2ZSBhZGRlZCBoaXMKPj4gci1i IHRhZ3MgdG8gdGhlIG90aGVyIHBhdGNoZXMuCj4+Cj4+IEFzIHVzdWFsIHJldmlzaW9uIGRldGFp bHMgYmVsbG93IHRoZSAtLS0gaW4gZWFjaCBwYXRjaC4KPgo+IFRoYW5rcyBmb3IgdGFraW5nIGNh cmUgb2YgdGhpcy4KPgo+IEkgaGF2ZSBhcHBsaWVkIHRoZSBzZXJpZXMgYW5kIHNsaWdodGx5IHR3 ZWFrZWQgdGhlIGNvbW1pdCBtZXNzYWdlcyBhbmQKPiBjb21tZW50YXJ5Lgo+Cj4gRGlkIHdlIHNp bXBseSBkZWNpZGUgdG8gbm90IHdvcnJ5IGFib3V0IGV4aXRpbmcgdG8gdXNlcnNwYWNlIGlmIHdl IGRvCj4gZmFzdC1wYXRoIGVtdWxhdGlvbiwgc3VjaCBhcyBmb3IgdGhlIGVycmF0YSB3b3JrYXJv dW5kIGFuZCBHSUMKPiBtYXNoYWxpbmcgaW4gc3dpdGNoLmMgPwoKQ29tcGlsZSB0ZXN0ZWQgb25s eToKCi0tODwtLS0tLS0tLS0tLS0tLS1jdXQgaGVyZS0tLS0tLS0tLS0tLS0tLXN0YXJ0LS0tLS0t LS0tLS0tLT44LS0tCmt2bTogYXJtNjQ6IGhhbmRsZSBzaW5nbGUtc3RlcCBvZiBoeXAgZW11bGF0 ZWQgbW1pbwoKVGhlcmUgaXMgYSBmYXN0LXBhdGggb2YgTU1JTyBlbXVsYXRpb24gaW5zaWRlIGh5 cCBtb2RlLiBUaGUgaGFuZGxpbmcKb2Ygc2luZ2xlLXN0ZXAgaXMgYnJvYWRseSB0aGUgc2FtZSBh cyBrdm1fYXJtX2hhbmRsZV9zdGVwX2RlYnVnKCkKZXhjZXB0IHdlIGp1c3Qgc2V0dXAgRVNSL0hT UiBzbyBoYW5kbGVfZXhpdCgpIGRvZXMgdGhlIGNvcnJlY3QgdGhpbmcKYXMgd2UgZXhpdC4KClNp Z25lZC1vZmYtYnk6IEFsZXggQmVubsOpZSA8YWxleC5iZW5uZWVAbGluYXJvLm9yZz4KLS0tCiBh cmNoL2FybTY0L2t2bS9oeXAvc3dpdGNoLmMgfCAyNiArKysrKysrKysrKysrKysrKysrKystLS0t LQogMSBmaWxlIGNoYW5nZWQsIDIxIGluc2VydGlvbnMoKyksIDUgZGVsZXRpb25zKC0pCgpkaWZm IC0tZ2l0IGEvYXJjaC9hcm02NC9rdm0vaHlwL3N3aXRjaC5jIGIvYXJjaC9hcm02NC9rdm0vaHlw L3N3aXRjaC5jCmluZGV4IDk0NWU3OWM2NDFjNC4uODQxZGM3OWQxMWZkIDEwMDY0NAotLS0gYS9h cmNoL2FybTY0L2t2bS9oeXAvc3dpdGNoLmMKKysrIGIvYXJjaC9hcm02NC9rdm0vaHlwL3N3aXRj aC5jCkBAIC0yNjMsNyArMjYzLDExIEBAIHN0YXRpYyBib29sIF9faHlwX3RleHQgX19wb3B1bGF0 ZV9mYXVsdF9pbmZvKHN0cnVjdCBrdm1fdmNwdSAqdmNwdSkKIAlyZXR1cm4gdHJ1ZTsKIH0KCi1z dGF0aWMgdm9pZCBfX2h5cF90ZXh0IF9fc2tpcF9pbnN0cihzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHUp CisvKiBTa2lwIGFuIGluc3RydWN0aW9uIHdoaWNoIGhhcyBiZWVuIGVtdWxhdGVkLiBSZXR1cm5z IHRydWUgaWYKKyAqIGV4ZWN1dGlvbiBjYW4gY29udGludWUgb3IgZmFsc2UgaWYgd2UgbmVlZCB0 byBleGl0IGh5cCBtb2RlIGJlY2F1c2UKKyAqIHNpbmdsZS1zdGVwIHdhcyBpbiBlZmZlY3QuCisg Ki8KK3N0YXRpYyBib29sIF9faHlwX3RleHQgX19za2lwX2luc3RyKHN0cnVjdCBrdm1fdmNwdSAq dmNwdSkKIHsKIAkqdmNwdV9wYyh2Y3B1KSA9IHJlYWRfc3lzcmVnX2VsMihlbHIpOwoKQEAgLTI3 Niw2ICsyODAsMTQgQEAgc3RhdGljIHZvaWQgX19oeXBfdGV4dCBfX3NraXBfaW5zdHIoc3RydWN0 IGt2bV92Y3B1ICp2Y3B1KQogCX0KCiAJd3JpdGVfc3lzcmVnX2VsMigqdmNwdV9wYyh2Y3B1KSwg ZWxyKTsKKworCWlmICh2Y3B1LT5ndWVzdF9kZWJ1ZyAmIEtWTV9HVUVTVERCR19TSU5HTEVTVEVQ KSB7CisJCXZjcHUtPmFyY2guZmF1bHQuZXNyX2VsMiA9CisJCQkoRVNSX0VMeF9FQ19TT0ZUU1RQ X0xPVyA8PCBFU1JfRUx4X0VDX1NISUZUKSB8IDB4MjI7CisJCXJldHVybiBmYWxzZTsKKwl9IGVs c2UgeworCQlyZXR1cm4gdHJ1ZTsKKwl9CiB9CgogaW50IF9faHlwX3RleHQgX19rdm1fdmNwdV9y dW4oc3RydWN0IGt2bV92Y3B1ICp2Y3B1KQpAQCAtMzM2LDggKzM0OCwxMCBAQCBpbnQgX19oeXBf dGV4dCBfX2t2bV92Y3B1X3J1bihzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHUpCiAJCQlpbnQgcmV0ID0g X192Z2ljX3YyX3BlcmZvcm1fY3B1aWZfYWNjZXNzKHZjcHUpOwoKIAkJCWlmIChyZXQgPT0gMSkg ewotCQkJCV9fc2tpcF9pbnN0cih2Y3B1KTsKLQkJCQlnb3RvIGFnYWluOworCQkJCWlmIChfX3Nr aXBfaW5zdHIodmNwdSkpCisJCQkJCWdvdG8gYWdhaW47CisJCQkJZWxzZQorCQkJCQlleGl0X2Nv ZGUgPSBBUk1fRVhDRVBUSU9OX1RSQVA7CiAJCQl9CgogCQkJaWYgKHJldCA9PSAtMSkgewpAQCAt MzU3LDggKzM3MSwxMCBAQCBpbnQgX19oeXBfdGV4dCBfX2t2bV92Y3B1X3J1bihzdHJ1Y3Qga3Zt X3ZjcHUgKnZjcHUpCiAJCWludCByZXQgPSBfX3ZnaWNfdjNfcGVyZm9ybV9jcHVpZl9hY2Nlc3Mo dmNwdSk7CgogCQlpZiAocmV0ID09IDEpIHsKLQkJCV9fc2tpcF9pbnN0cih2Y3B1KTsKLQkJCWdv dG8gYWdhaW47CisJCQlpZiAoX19za2lwX2luc3RyKHZjcHUpKQorCQkJCWdvdG8gYWdhaW47CisJ CQllbHNlCisJCQkJZXhpdF9jb2RlID0gQVJNX0VYQ0VQVElPTl9UUkFQOwogCQl9CgogCQkvKiAw IGZhbGxzIHRocm91Z2ggdG8gYmUgaGFuZGxlZCBvdXQgb2YgRUwyICovCi0tODwtLS0tLS0tLS0t LS0tLS1jdXQgaGVyZS0tLS0tLS0tLS0tLS0tLWVuZC0tLS0tLS0tLS0tLS0tLT44LS0tCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmt2bWFybSBtYWlsaW5n IGxpc3QKa3ZtYXJtQGxpc3RzLmNzLmNvbHVtYmlhLmVkdQpodHRwczovL2xpc3RzLmNzLmNvbHVt YmlhLmVkdS9tYWlsbWFuL2xpc3RpbmZvL2t2bWFybQo=