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Tue, 25 Nov 2025 10:52:09 -0800 (PST) Received: from localhost ([2a02:8308:a00c:e200::3052]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-42cb7fba201sm35904066f8f.32.2025.11.25.10.52.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Nov 2025 10:52:09 -0800 (PST) Mime-Version: 1.0 Date: Tue, 25 Nov 2025 19:51:34 +0100 Message-Id: Subject: Re: [PATCH] lib: sbi: expected trap must always clear MPRV Cc: , "opensbi" To: "Deepak Gupta" From: =?utf-8?q?Radim_Kr=C4=8Dm=C3=A1=C5=99?= References: <20251124220339.3695940-1-debug@rivosinc.com> In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251125_105211_711673_C6B66388 X-CRM114-Status: GOOD ( 19.78 ) X-BeenThere: opensbi@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "opensbi" Errors-To: opensbi-bounces+opensbi=archiver.kernel.org@lists.infradead.org MjAyNS0xMS0yNVQxMDowMzoxMi0wODowMCwgRGVlcGFrIEd1cHRhIDxkZWJ1Z0ByaXZvc2luYy5j b20+Ogo+IE9uIFR1ZSwgTm92IDI1LCAyMDI1IGF0IDEyOjEyOjExUE0gKzAxMDAsIFJhZGltIEty xI1tw6HFmSB3cm90ZToKPj4yMDI1LTExLTI0VDE0OjAzOjM5LTA4OjAwLCBEZWVwYWsgR3VwdGEg PGRlYnVnQHJpdm9zaW5jLmNvbT46Cj4+PiBFeHBlY3RlZCB0cmFwIG11c3QgYWx3YXlzIGNsZWFy IE1QUlYuIEN1cnJlbnRseSBpdCBkb2Vzbid0LiBUaGVyZSBpcyBhCj4+PiBzZWN1cml0eSBpc3N1 ZSBoZXJlIHdoZXJlIGlmIGZpcm13YXJlIHdhcyBkb2luZyBsZC9zdCB3aXRoIE1QUlY9MSBhbmQK Pj4+IHNpbmNlIHRoZXJlIHdvdWxkIGJlIGEgZXhwZWN0ZWQgdHJhcCwgb3BlbnNiaSB3aWxsIGNv bnRpbnVlIHRvIHJ1biBhcwo+Pj4gTVBSVj0xLiBTZWN1cml0eSBpbXBhY3QgaXMgRG9TIHdoZXJl IG9wZW5zYmkgd2lsbCBqdXN0IGtlZXAgdHJhcHBpbmcuCj4+Cj4+RG9lcyB0aGUgRG9TIGhhcHBl biBvbiBzb21lIGltcGxlbWVudGF0aW9uPwo+Cj4gSSByYW4gaW50byBpdCB3aGlsZSBkb2luZyBz b21ldGhpbmcgZWxzZS4gU28gaXQgd2FzIHJlc3VsdCBvZiBiYXNpY2FsbHkKPiBleWViYWxsaW5n LiBEaWRuJ3Qgb2JzZXJ2ZSBvbiByZWFsIHN5c3RlbS4KPgo+Pgo+PlRoZSBleHBlY3RlZCB0cmFw IGNhbWUgZnJvbSBNLW1vZGUsIHRoZXJlZm9yZSB3aWxsIGhhdmUgbXN0YXR1cy5NUFA9MywKPj5z byBNUFJWPTEgc2hvdWxkIGJlaGF2ZSB0aGUgc2FtZSBhcyBNUFJWPTAuCj4KPiBZZWFoIEkgbWlz c2VkIHRoYXQgcGFydC4gWW91IGhhdmUgYSBwb2ludCBoZXJlLgo+Cj4gSG93ZXZlciBpZiB3ZSBy ZWFkIHByaXYgc3BlYwo+ICIyMS40LjEuIE1hY2hpbmUgU3RhdHVzIChtc3RhdHVzIGFuZCBtc3Rh dHVzaCkgUmVnaXN0ZXJzIgo+Cj4gLi4uCj4gVGhlIE1QViBiaXQgKE1hY2hpbmUgUHJldmlvdXMg VmlydHVhbGl6YXRpb24gTW9kZSkgaXMgd3JpdHRlbiBieSB0aGUKPiBpbXBsZW1lbnRhdGlvbiB3 aGVuZXZlciBhIHRyYXAgaXMgdGFrZW4gaW50byBNLW1vZGUuIEp1c3QgYXMgdGhlIE1QUAo+IGZp ZWxkIGlzIHNldCB0byB0aGUgKG5vbWluYWwpIHByaXZpbGVnZSBtb2RlIGF0IHRoZSB0aW1lIG9m IHRoZSB0cmFwLAo+IC4uLgo+Cj4gQWJvdmUgdGV4dCBzZWVtcyB0byBzdWdnZXN0IHRoYXQgbm9t aW5hbCBwcml2aWxlZ2UgYXQgdGltZSBvZiB0cmFwIGlzCj4gc2V0IGluIE1QUC4KPgo+IEFuZCB0 aGVuIGp1c3QgYSBmZXcgcGFyYWdyYXBoIGJlbG93IGlmIHdlIHJlYWQsCj4KPiAuLi4KPiBXaGVu IE1QUlY9MSwgZXhwbGljaXQgbWVtb3J5IGFjY2Vzc2VzIGFyZSB0cmFuc2xhdGVkIGFuZCBwcm90 ZWN0ZWQsCj4gYW5kIGVuZGlhbm5lc3MgaXMgYXBwbGllZCwgYXMgdGhvdWdoIHRoZSBjdXJyZW50 IHZpcnR1YWxpemF0aW9uIG1vZGUKPiB3ZXJlIHNldCB0byBNUFYgYW5kIHRoZSBjdXJyZW50IG5v bWluYWwgcHJpdmlsZWdlIG1vZGUgd2VyZSBzZXQgdG8gTVBQCj4gLi4uCgpJIHRoaW5rIHRoYXQg TVBSViBkb2Vzbid0IGNoYW5nZSB0aGUgbm9taW5hbCBwcml2aWxlZ2UgbW9kZS4KTVBSViBqdXN0 IG1vZGlmaWVzIGV4cGxpY2l0IG1lbW9yeSBhY2Nlc3NlcyB0byBiZWhhdmUgImFzIHRocm91Z2gi IHRoZQpub21pbmFsIHByaXZpbGVnZSBtb2RlIHdhcyBNUFAuCgplLmcuIGxvYWQgaW5zdHJ1Y3Rp b24gZmV0Y2hlZCB3aXRoIE0tbW9kZSBpbXBsaWNpdCBhY2Nlc3MgKG5vbWluYWwKcHJpdmlsZWdl KSBwZXJmb3JtcyBub24tTS1tb2RlIGV4cGxpY2l0IGxvYWQgKGVmZmVjdGl2ZSBwcml2aWxlZ2Up LgoKKFRoZSBhcmNoaXRlY3R1cmUgd291bGQgYmUgYnJva2VuIG90aGVyd2lzZS4pCgo+IFNvIGlm IHRha2UgdGhlbSB0b2dldGhlciwgaXQgc2VlbXMgbGlrZSBub21pbmFsIHByaXYgYXQgdGltZSB0 cmFwIGNhbiBiZQo+IGxlc3MgdGhhbiAzIGFuZCBzYW1lIHNob3VsZCByZWZsZWN0IGluIE1QUCBp ZiBpdCBnZXRzIHRyYXBwZWQuCgpub24tTSBub21pbmFsIHByaXZpbGVnZSBtb2RlIGNhbiBvbmx5 IGJlIHJlYWNoZWQgdmlhIG1yZXQvc3JldCwgYW5kCm1yZXQvc3JldCBjbGVhciBNUFJWLCBzbyB0 aGVyZSBzaG91bGQgYmUgbm8gd2F5IHRvIGVudGVyIGEgdHJhcCBoYW5kbGVyCndpdGggTVBSViA9 PSAxICYmIE1QUCAhPSAzLgoKKFRoZSBleHBlY3RlZCB0cmFwIGhhbmRsZXIgc2hvdWxkIG9ubHkg YmUgY29uZmlndXJlZCBkdXJpbmcgb3BlbnNiaSdzCiBNLW1vZGUgZXhlY3V0aW9uIGFueXdheS4p Cgo+IEkgZG9uJ3Qga25vdyB3aGF0IGltcGxlbWVudGF0aW9ucyBhcmUgZG9pbmcuIFNob3VsZCBh c2sgYXJvdW5kLgoKSSB3b3VsZG4ndCBiZSBzdXJwcmlzZWQgdG8gZmluZCBidWdzIGluIHRob3Nl IGNvcm5lciBjYXNlcy4uLgoKLS0gCm9wZW5zYmkgbWFpbGluZyBsaXN0Cm9wZW5zYmlAbGlzdHMu aW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZv L29wZW5zYmkK