From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Mon, 23 Mar 2020 00:26:06 +0000 Received: from localhost ([::1] helo=libre-riscv.org) by libre-riscv.org with esmtp (Exim 4.89) (envelope-from ) id 1jGAur-0000Dq-Te; Mon, 23 Mar 2020 00:26:05 +0000 Received: from localhost ([127.0.0.1] helo=bugs.libre-riscv.org) by libre-riscv.org with esmtp (Exim 4.89) (envelope-from ) id 1jGAuo-0000De-Vp for libre-riscv-dev@lists.libre-riscv.org; Mon, 23 Mar 2020 00:26:03 +0000 From: bugzilla-daemon@libre-riscv.org To: libre-riscv-dev@lists.libre-riscv.org Date: Mon, 23 Mar 2020 00:26:03 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Libre-SOC's first SoC X-Bugzilla-Component: Specification X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: lkcl@lkcl.net X-Bugzilla-Status: CONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: High X-Bugzilla-Assigned-To: lkcl@lkcl.net X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://bugs.libre-riscv.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Subject: [libre-riscv-dev] [Bug 264] ISA switch needs to be a privileged operation X-BeenThere: libre-riscv-dev@lists.libre-riscv.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Libre-RISCV General Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Libre-RISCV General Development Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: libre-riscv-dev-bounces@lists.libre-riscv.org Sender: "libre-riscv-dev" Archived-At: List-Archive: aHR0cDovL2J1Z3MubGlicmUtcmlzY3Yub3JnL3Nob3dfYnVnLmNnaT9pZD0yNjQKCi0tLSBDb21t ZW50ICMyIGZyb20gTHVrZSBLZW5uZXRoIENhc3NvbiBMZWlnaHRvbiA8bGtjbEBsa2NsLm5ldD4g LS0tCihJbiByZXBseSB0byBKYWNvYiBMaWZzaGF5IGZyb20gY29tbWVudCAjMSkKCmknbGwgbWVu dGlvbiB0aGUgZWxmIGZsYWdzIGlkZWEuIGl0IG1heSBoZWxwIGF0IHNvbWUgcG9pbnQgaWYgeW91 IGNvdWxkIGV4cGxhaW4KaXQgdG8gVGltIG9mIFJhcHRvckNTLgoKCj4gRm9yIHN3aXRjaGluZyBi ZXR3ZWVuIHN0YW5kYXJkIFBvd2VyIGFuZCBQb3dlcitTVlByZWZpeCwgSSB3YXMgaG9waW5nIHRo YXQKPiBhbGwgb2YgU1ZQcmVmaXggd291bGQganVzdCBmaXQgaW4gdW5hbGxvY2F0ZWQgcG9ydGlv bnMgb2YgdGhlIFBvd2VyIElTQS4KCmp1c3QuIGJhcmVseSwgeWVzLiBieSB1c2luZyB1cCAyIG1h am9yIG9wY29kZXMgcGVyIHByZWZpeC4gIDIgZm9yIDQ4LCAyIGZvciA2NApiaXQuCgo+IAo+IEZv ciBoYW5kbGluZyAxNi1iaXQgaW5zdHJ1Y3Rpb25zLCB3b3VsZCBpdCB3b3JrIHRvIGluc3RlYWQg ZGVmaW5lIGEgcGFpciBvZgo+IDE2LWJpdCBpbnN0cnVjdGlvbnMgYXMgYSAzMi1iaXQgaW5zdHJ1 Y3Rpb24gd2l0aCB0aGUgc3RhbmRhcmQgb3Bjb2RlIGZpZWxkCj4gaW4gdGhlIGNvcnJlY3QgcG9z aXRpb24gZm9yIGRlY29kaW5nIHRvIGFsbG93IG1peGluZyB3aXRoIGFyYml0cmFyeSA+PQo+IDMy LWJpdCBQb3dlciBJU0Egb3BlcmF0aW9ucz8KCm9ubHkgb24gQkUgc3lzdGVtcyBiZWNhdXNlIG9u bHkgdGhlbiBkb2VzIHRoZSBkZWNvZGVyIHNlZSB0aGUgbWFqb3Igb3Bjb2RlIGluCnRoZSAxc3Qg Ynl0ZS4KCm9rIG9rIGlmIHdlIHdhbnRlZCB0byBtYWtlIG91cnNlbHZlcyBmZWVsIGxpa2UgamFt bWluZyBvdXIgZmluZ2VycyBkb3duIG91cgp0aHJvYXQgYW5kIGh1cmxpbmcsIHdlIGNvdWxkIGdv OgoKIm9rIG1yIDMyIGJpdCBMRSBzeXN0ZW0sIHdlIGhhdmUgcmVzZXJ2ZWQgMiBtYWpvciBvcGNv ZGVzIGZvciBDLCBhbmQgaW4gYnl0ZSAzCndlIGhhdmUgYSBDIGluc3RydWN0aW9uLiAgaG93ZXZl ciB0aGVyZSBhcmUgMiBieXRlcyBsZWZ0LCAwIGFuZCAxLCB3aGljaCBpcyBub3cKdGhlIFNFQ09O RCBDIGluc3RydWN0aW9uLCB0byBiZSBleGVjdXRlZCBBRlRFUiB0aGUgb25lIGluIGJ5dGVzIDIg YW5kIDMiLgoKaWYgdGhvc2UgMiBieXRlcyBhcmUgYWxsIHplcm8gdGhhdCBpcyBhIEMgTk9QCgpz byB0aGlzIHdvdWxkIG1lYW4gcnVubmluZyBpbnN0cnVjdGlvbnMgaW4gYSB3ZWlyZCAyIHN0ZXBz IGZvcndhcmQsIDEgc3RlcCBiYWNrCmZhc2hpb24sIGJ1dCB3b3VsZCBhdCBsZWFzdCBiZSBMRSBj b21wYXRpYmxlLgoKYmxlY2guCgpTVlByZWZpeDMyIChDIHdpdGggYSBTVlAgYWRkZWQpIGlzIGFs c28gZG9hYmxlIGJ0dy4gIHRoYXQganVzdCB0YWtlcyB1cCAzMgpiaXRzLCBzdHJhaWdodC4KCj4g Cj4gRm9yIGV4YW1wbGUsIGlmIHRoZXJlIHdlcmUgdGhlIGZvbGxvd2luZyB0d28gMTYtYml0IGlu c3RydWN0aW9uczoKPiAKPiBhZGQgMywgMywgNAo+IGFkZGkgMywgMywgMTIKPiAKPiBUaGV5IHdv dWxkIGJvdGggYmUgcGFja2VkIGludG8KPiBhIHNpbmdsZSAzMi1iaXQgaW5zdHJ1Y3Rpb24gKGRl bm90ZWQgdXNpbmcgYnJhY2VzKToKPiAKPiB7Cj4gICAgIGFkZCAzLCAzLCA0Cj4gICAgIGFkZGkg MywgMywgMTIKPiB9Cj4gCj4gV2Ugd291bGRuJ3QgbmVlZCB0byBzdXBwb3J0IGFsbCBpbnN0cnVj dGlvbnMsIGp1c3QgdGhlIG1vc3QgY29tbW9uIG9uZXMsIAoKeWVzIGFncmVlZC4gIGknZCBsaWtl IHRvIGFzayByb2dpZXIgYnJ1aXNzZSB0byBoZWxwIGRlc2lnbiBpdCwgaGUgaXMgZXh0cmVtZWx5 Cmdvb2QuCgoKCj5hbmQKPiBpdCdzIHBlcmZlY3RseSBmaW5lIHRvIG5vdCBzdXBwb3J0IHBhcnRp Y3VsYXIgcGFpcnMgKHN1Y2ggYXMgaWYgdGhlIHNlY29uZAo+IG9uZSBjYW4gdHJhcCBhbmQgdGhl IGZpcnN0IG9uZSBjYW4ndCBqdXN0IGJlIHJ1biBhZ2FpbiAtLSBhbGxvd2luZyB1cyB0byBub3QK PiBuZWVkIHRvIHdvcnJ5IGFib3V0IHdoYXQgaGFwcGVucyBpZiB3ZSB0cmFwIGluIHRoZSBtaWRk bGUgb2YgYSBwYWlyKS4KCmhtbS4uLiB3ZSBtaWdodCBoYXZlIHRvLiBvciwgYW5vdGhlciB3YXkg KGluZGljYXRpbmcgdGhlIGV4dGVudCBvZiB0aGUKYXdmdWxuZXNzKSwgYSBiaXQgaW4gYSBTUFIg d2hpY2ggaXMgY29udGV4dHN3aXRjaGVkIHRlbGxzIHVzIHdoaWNoIG9mIHRoZSAyIEMKaW5zdHJ1 Y3Rpb25zIGFyZSBiZWluZyBleGVjdXRlZC4KCm9yLi4uICpzaHVkZGVyKiB3ZSBoYXZlIHRoZSBQ QyBhZHZhbmNlIGZpcnN0IGJ5IDQgYnl0ZXMsIHRoZW4ganVtcCBCQUNLIDIKYnl0ZXMsIHRoZW4g anVtcCBmb3J3YXJkIHRvLi4uIG5vLCBteSBicmFpbiBqdXN0IG1lbHRlZCB0aGlua2luZyBhYm91 dCB0aGF0Cm9uZS4KCi0tIApZb3UgYXJlIHJlY2VpdmluZyB0aGlzIG1haWwgYmVjYXVzZToKWW91 IGFyZSBvbiB0aGUgQ0MgbGlzdCBmb3IgdGhlIGJ1Zy4KX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KbGlicmUtcmlzY3YtZGV2IG1haWxpbmcgbGlzdApsaWJy ZS1yaXNjdi1kZXZAbGlzdHMubGlicmUtcmlzY3Yub3JnCmh0dHA6Ly9saXN0cy5saWJyZS1yaXNj di5vcmcvbWFpbG1hbi9saXN0aW5mby9saWJyZS1yaXNjdi1kZXYK