Re: [PATCH v3 2/2] RISC-V: KVM: Introduce make_xfence_request_nodata for FENCE.I requests
Anup Patel <[email protected]> Sat, 1 Aug 2026 14:05:18 +0530
| Newsgroups | org.infradead.lists.kvm-riscv,org.infradead.lists.linux-riscv,org.kernel.vger.kvm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <CAAhSdy1r=wfR3j5da2DtyiitNi6S5EOrRAh6Nv6kMqZDBpMMhg@mail.gmail.com> |
T24gRnJpLCBKdWwgMzEsIDIwMjYgYXQgMzoxMuKAr1BNIFdhbmcgWWVjaGFvIDx3YW5nLnllY2hh bzI1NUB6dGUuY29tLmNuPiB3cm90ZToKPgo+IEZFTkNFLkkgZG9lcyBub3QgbmVlZCBoZmVuY2Ug ZGF0YSwgYnV0IGl0IGN1cnJlbnRseSBnb2VzIHRocm91Z2ggdGhlCj4gZ2VuZXJpYyBtYWtlX3hm ZW5jZV9yZXF1ZXN0KCkgcGF0aCB3aXRoIE5VTEwgZGF0YSwgaW5jdXJyaW5nIHVubmVjZXNzYXJ5 Cj4gcGVyLVZDUFUgY2hlY2tzLgo+Cj4gU3BsaXQgb3V0IGEgc2VwYXJhdGUgbWFrZV94ZmVuY2Vf cmVxdWVzdF9ub2RhdGEoKSBmdW5jdGlvbiB0byBoYW5kbGUKPiBGRU5DRS5JIGRpcmVjdGx5LCBh bmQgbW92ZSB0aGUgZGF0YSB2YWxpZGl0eSBjaGVjayB0byB0aGUgdG9wIG9mIHRoZQo+IGdlbmVy aWMgZnVuY3Rpb24gdG8gYXZvaWQgcmVkdW5kYW50IGNoZWNrcy4KPgo+IFNpZ25lZC1vZmYtYnk6 IFdhbmcgWWVjaGFvIDx3YW5nLnllY2hhbzI1NUB6dGUuY29tLmNuPgoKTEdUTS4KClJldmlld2Vk LWJ5OiBBbnVwIFBhdGVsIDxhbnVwQGJyYWluZmF1bHQub3JnPgoKVGhhbmtzLApBbnVwCgo+IC0t LQo+ICBhcmNoL3Jpc2N2L2t2bS90bGIuYyB8IDM0ICsrKysrKysrKysrKysrKysrKysrKysrKysr Ky0tLS0tLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDI3IGluc2VydGlvbnMoKyksIDcgZGVsZXRpb25z KC0pCj4KPiBkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9rdm0vdGxiLmMgYi9hcmNoL3Jpc2N2L2t2 bS90bGIuYwo+IGluZGV4IGM1NDUyMmRlY2FhNjQuLmZkNDQ1ZTlmYTNmOTQgMTAwNjQ0Cj4gLS0t IGEvYXJjaC9yaXNjdi9rdm0vdGxiLmMKPiArKysgYi9hcmNoL3Jpc2N2L2t2bS90bGIuYwo+IEBA IC0zMjUsNiArMzI1LDI5IEBAIHZvaWQga3ZtX3Jpc2N2X2hmZW5jZV9wcm9jZXNzKHN0cnVjdCBr dm1fdmNwdSAqdmNwdSkKPiAgICAgICAgIH0KPiAgfQo+Cj4gK3N0YXRpYyB2b2lkIG1ha2VfeGZl bmNlX3JlcXVlc3Rfbm9kYXRhKHN0cnVjdCBrdm0gKmt2bSwgdW5zaWduZWQgbG9uZyBoYmFzZSwK PiArICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICB1bnNpZ25lZCBsb25nIGht YXNrLCB1bnNpZ25lZCBpbnQgcmVxKQo+ICt7Cj4gKyAgICAgICB1bnNpZ25lZCBsb25nIGk7Cj4g KyAgICAgICBzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHU7Cj4gKyAgICAgICBERUNMQVJFX0JJVE1BUCh2 Y3B1X21hc2ssIEtWTV9NQVhfVkNQVVMpOwo+ICsKPiArICAgICAgIGJpdG1hcF96ZXJvKHZjcHVf bWFzaywgS1ZNX01BWF9WQ1BVUyk7Cj4gKyAgICAgICBrdm1fZm9yX2VhY2hfdmNwdShpLCB2Y3B1 LCBrdm0pIHsKPiArICAgICAgICAgICAgICAgaWYgKGhiYXNlICE9IC0xVUwpIHsKPiArICAgICAg ICAgICAgICAgICAgICAgICBpZiAodmNwdS0+dmNwdV9pZCA8IGhiYXNlIHx8Cj4gKyAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICB2Y3B1LT52Y3B1X2lkID49IGhiYXNlICsgQklUU19QRVJf TE9ORykKPiArICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGNvbnRpbnVlOwo+ICsgICAg ICAgICAgICAgICAgICAgICAgIGlmICghKGhtYXNrICYgKDFVTCA8PCAodmNwdS0+dmNwdV9pZCAt IGhiYXNlKSkpKQo+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgY29udGludWU7Cj4g KyAgICAgICAgICAgICAgIH0KPiArCj4gKyAgICAgICAgICAgICAgIGJpdG1hcF9zZXQodmNwdV9t YXNrLCBpLCAxKTsKPiArICAgICAgIH0KPiArCj4gKyAgICAgICBrdm1fbWFrZV92Y3B1c19yZXF1 ZXN0X21hc2soa3ZtLCByZXEsIHZjcHVfbWFzayk7Cj4gK30KPiArCj4gIHN0YXRpYyB2b2lkIG1h a2VfeGZlbmNlX3JlcXVlc3Qoc3RydWN0IGt2bSAqa3ZtLAo+ICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgdW5zaWduZWQgbG9uZyBoYmFzZSwgdW5zaWduZWQgbG9uZyBobWFzaywKPiAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIHVuc2lnbmVkIGludCByZXEsIHVuc2lnbmVk IGludCBmYWxsYmFja19yZXEsCj4gQEAgLTMzNSw2ICszNTgsOSBAQCBzdGF0aWMgdm9pZCBtYWtl X3hmZW5jZV9yZXF1ZXN0KHN0cnVjdCBrdm0gKmt2bSwKPiAgICAgICAgIERFQ0xBUkVfQklUTUFQ KHJlcV92Y3B1X21hc2ssIEtWTV9NQVhfVkNQVVMpOwo+ICAgICAgICAgREVDTEFSRV9CSVRNQVAo ZmFsbGJhY2tfcmVxX3ZjcHVfbWFzaywgS1ZNX01BWF9WQ1BVUyk7Cj4KPiArICAgICAgIGlmICgh ZGF0YSB8fCAhZGF0YS0+dHlwZSkKPiArICAgICAgICAgICAgICAgcmV0dXJuOwo+ICsKPiAgICAg ICAgIGJpdG1hcF96ZXJvKHJlcV92Y3B1X21hc2ssIEtWTV9NQVhfVkNQVVMpOwo+ICAgICAgICAg Yml0bWFwX3plcm8oZmFsbGJhY2tfcmVxX3ZjcHVfbWFzaywgS1ZNX01BWF9WQ1BVUyk7Cj4gICAg ICAgICBrdm1fZm9yX2VhY2hfdmNwdShpLCB2Y3B1LCBrdm0pIHsKPiBAQCAtMzQ2LDExICszNzIs NiBAQCBzdGF0aWMgdm9pZCBtYWtlX3hmZW5jZV9yZXF1ZXN0KHN0cnVjdCBrdm0gKmt2bSwKPiAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGNvbnRpbnVlOwo+ICAgICAgICAgICAgICAg ICB9Cj4KPiAtICAgICAgICAgICAgICAgaWYgKCFkYXRhIHx8ICFkYXRhLT50eXBlKSB7Cj4gLSAg ICAgICAgICAgICAgICAgICAgICAgYml0bWFwX3NldChyZXFfdmNwdV9tYXNrLCBpLCAxKTsKPiAt ICAgICAgICAgICAgICAgICAgICAgICBjb250aW51ZTsKPiAtICAgICAgICAgICAgICAgfQo+IC0K PiAgICAgICAgICAgICAgICAgLyoKPiAgICAgICAgICAgICAgICAgICogRW5xdWV1ZSBoZmVuY2Ug ZGF0YSB0byBWQ1BVIGhmZW5jZSBxdWV1ZS4gSWYgd2UgZG9uJ3QKPiAgICAgICAgICAgICAgICAg ICogaGF2ZSBzcGFjZSBpbiB0aGUgVkNQVSBoZmVuY2UgcXVldWUgdGhlbiBmYWxsYmFjayB0bwo+ IEBAIC0zNjksOCArMzkwLDcgQEAgc3RhdGljIHZvaWQgbWFrZV94ZmVuY2VfcmVxdWVzdChzdHJ1 Y3Qga3ZtICprdm0sCj4gIHZvaWQga3ZtX3Jpc2N2X2ZlbmNlX2koc3RydWN0IGt2bSAqa3ZtLAo+ ICAgICAgICAgICAgICAgICAgICAgICAgdW5zaWduZWQgbG9uZyBoYmFzZSwgdW5zaWduZWQgbG9u ZyBobWFzaykKPiAgewo+IC0gICAgICAgbWFrZV94ZmVuY2VfcmVxdWVzdChrdm0sIGhiYXNlLCBo bWFzaywgS1ZNX1JFUV9GRU5DRV9JLAo+IC0gICAgICAgICAgICAgICAgICAgICAgICAgICBLVk1f UkVRX0ZFTkNFX0ksIE5VTEwpOwo+ICsgICAgICAgbWFrZV94ZmVuY2VfcmVxdWVzdF9ub2RhdGEo a3ZtLCBoYmFzZSwgaG1hc2ssIEtWTV9SRVFfRkVOQ0VfSSk7Cj4gIH0KPgo+ICB2b2lkIGt2bV9y aXNjdl9oZmVuY2VfZ3ZtYV92bWlkX2dwYShzdHJ1Y3Qga3ZtICprdm0sCj4gLS0KPiAyLjM5LjMK PgoKLS0gCmt2bS1yaXNjdiBtYWlsaW5nIGxpc3QKa3ZtLXJpc2N2QGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9rdm0tcmlzY3YK