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Received: from DESKTOP-S9E58SO.localdomain(mailfrom:cp0613@linux.alibaba.com fp:SMTPD_---0XBgzgOW_1790562091 cluster:ay36) by smtp.aliyun-inc.com; Mon, 28 Sep 2026 10:21:31 +0800 From: Chen Pei To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, memxor@gmail.com, bjorn@kernel.org, puranjay@kernel.org Cc: ihor.solodrai@linux.dev, eddyz87@gmail.com, martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org, emil@etsalapatis.com, pulehui@huawei.com, pjw@kernel.org, palmer@dabbelt.com, shuah@kernel.org, guoren@kernel.org, bpf@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH bpf-next v2 1/2] bpf, riscv: Add support for indirect jumps Date: Mon, 28 Sep 2026 10:21:08 +0800 Message-ID: <20260928022109.1093-2-cp0613@linux.alibaba.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260928022109.1093-1-cp0613@linux.alibaba.com> References: <20260928022109.1093-1-cp0613@linux.alibaba.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260927_192141_193770_21E5C2F2 X-CRM114-Status: GOOD ( 15.92 ) X-BeenThere: linux-riscv@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: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org SW1wbGVtZW50IEpJVCBzdXBwb3J0IGZvciB0aGUgaW5kaXJlY3QganVtcCBpbnN0cnVjdGlvbiAo QlBGX0pNUCB8CkJQRl9KQSB8IEJQRl9YKSwgYS5rLmEuIGdvdG94LCB3aGljaCBsZXRzIGEgQlBG IHByb2dyYW0ganVtcCB0aHJvdWdoIGEKQlBGX01BUF9UWVBFX0lOU05fQVJSQVkganVtcCB0YWJs ZS4KCkVtaXQgImphbHIgemVybywgcmQsIDAiIGFuZCBoYW5kIHRoZSB4bGF0ZWQgdG8gaml0dGVk IG9mZnNldHMgdG8KYnBmX3Byb2dfdXBkYXRlX2luc25fcHRycygpLCB3aGljaCBpcyB3aGF0IGZp bGxzIGluIHRoZSBqdW1wIHRhYmxlCmVudHJpZXM7IHdpdGhvdXQgdGhhdCBjYWxsIHRoZSBsb2Fk IGZhaWxzIHdpdGggLUVGQVVMVCBpbgpicGZfaW5zbl9hcnJheV9yZWFkeSgpLiBjdHgtPm9mZnNl dFtdIGhvbGRzIHRoZSBvZmZzZXQgb2YgdGhlIGluc24KKmZvbGxvd2luZyogaW5zbiBpLCBhcyBi cGZfcHJvZ19maWxsX2ppdGVkX2xpbmZvKCkgZXhwZWN0cywgc28gaXQgaXMKc2hpZnRlZCBieSBv bmUgYW5kIG9mZnNldFswXSBjb21lcyBmcm9tIHRoZSBwcm9sb2d1ZSBsZW5ndGguIGJ1aWxkX2Jv ZHkoKQpub3cgcmVjb3JkcyBib3RoIGhhbHZlcyBvZiBhIG11bHRpLWluc24gcmVjb3JkLCBzbyBu byBzbG90IGtlZXBzIGEKZmFicmljYXRlZCBvZmZzZXQuCgpPbmx5IHRoZSBSVjY0IEpJVCBpcyBj b3ZlcmVkOyBSVjMyIGtlZXBzIGZhaWxpbmcgdG8gbG9hZCBhcyBiZWZvcmUuCgpTaWduZWQtb2Zm LWJ5OiBDaGVuIFBlaSA8Y3AwNjEzQGxpbnV4LmFsaWJhYmEuY29tPgpSZXZpZXdlZC1ieTogQmrD tnJuIFTDtnBlbCA8Ympvcm5Aa2VybmVsLm9yZz4KQWNrZWQtYnk6IEJqw7ZybiBUw7ZwZWwgPGJq b3JuQGtlcm5lbC5vcmc+Ci0tLQoKQ2hhbmdlcyBzaW5jZSB2MToKLSBSZXdvcmQgdGhlIGNvZGUg Y29tbWVudCB0byBzYXkgInNoaWZ0IGN0eC0+b2Zmc2V0W10gYnkgb25lIi4KCiBhcmNoL3Jpc2N2 L25ldC9icGZfaml0X2NvbXA2NC5jIHwgIDUgKysrKysKIGFyY2gvcmlzY3YvbmV0L2JwZl9qaXRf Y29yZS5jICAgfCAxNiArKysrKysrKysrKysrKy0tCiAyIGZpbGVzIGNoYW5nZWQsIDE5IGluc2Vy dGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9uZXQvYnBm X2ppdF9jb21wNjQuYyBiL2FyY2gvcmlzY3YvbmV0L2JwZl9qaXRfY29tcDY0LmMKaW5kZXggZWQw YTZmODcxZGVhLi45ZGUzNzQ5ZmIyNjggMTAwNjQ0Ci0tLSBhL2FyY2gvcmlzY3YvbmV0L2JwZl9q aXRfY29tcDY0LmMKKysrIGIvYXJjaC9yaXNjdi9uZXQvYnBmX2ppdF9jb21wNjQuYwpAQCAtMTY5 MSw2ICsxNjkxLDExIEBAIGludCBicGZfaml0X2VtaXRfaW5zbihjb25zdCBzdHJ1Y3QgYnBmX2lu c24gKmluc24sIHN0cnVjdCBydl9qaXRfY29udGV4dCAqY3R4LAogCQkJZW1pdF96ZXh0dyhyZCwg cmQsIGN0eCk7CiAJCWJyZWFrOwogCisJLyogSlVNUCByZWcgKi8KKwljYXNlIEJQRl9KTVAgfCBC UEZfSkEgfCBCUEZfWDoKKwkJZW1pdF9qYWxyKFJWX1JFR19aRVJPLCByZCwgMCwgY3R4KTsKKwkJ YnJlYWs7CisKIAkvKiBKVU1QIG9mZiAqLwogCWNhc2UgQlBGX0pNUCB8IEJQRl9KQToKIAljYXNl IEJQRl9KTVAzMiB8IEJQRl9KQToKZGlmZiAtLWdpdCBhL2FyY2gvcmlzY3YvbmV0L2JwZl9qaXRf Y29yZS5jIGIvYXJjaC9yaXNjdi9uZXQvYnBmX2ppdF9jb3JlLmMKaW5kZXggNDcwYTZhY2U1NjYy Li41MjY1ZGQ1YmQzOWUgMTAwNjQ0Ci0tLSBhL2FyY2gvcmlzY3YvbmV0L2JwZl9qaXRfY29yZS5j CisrKyBiL2FyY2gvcmlzY3YvbmV0L2JwZl9qaXRfY29yZS5jCkBAIC0yNiwxMCArMjYsMTMgQEAg c3RhdGljIGludCBidWlsZF9ib2R5KHN0cnVjdCBydl9qaXRfY29udGV4dCAqY3R4LCBib29sIGV4 dHJhX3Bhc3MsIGludCAqb2Zmc2V0KQogCQlpbnQgcmV0OwogCiAJCXJldCA9IGJwZl9qaXRfZW1p dF9pbnNuKGluc24sIGN0eCwgZXh0cmFfcGFzcyk7Ci0JCWlmIChyZXQgPiAwKQotCQkJaSsrOyAv KiBza2lwIHRoZSBuZXh0IGluc3RydWN0aW9uICovCiAJCWlmIChvZmZzZXQpCiAJCQlvZmZzZXRb aV0gPSBjdHgtPm5pbnNuczsKKwkJaWYgKHJldCA+IDApIHsKKwkJCWkrKzsgLyogc2tpcCB0aGUg bmV4dCBpbnN0cnVjdGlvbiAqLworCQkJaWYgKG9mZnNldCkKKwkJCQlvZmZzZXRbaV0gPSBjdHgt Pm5pbnNuczsKKwkJfQogCQlpZiAocmV0IDwgMCkKIAkJCXJldHVybiByZXQ7CiAJfQpAQCAtMTc2 LDYgKzE3OSwxNSBAQCBzdHJ1Y3QgYnBmX3Byb2cgKmJwZl9pbnRfaml0X2NvbXBpbGUoc3RydWN0 IGJwZl92ZXJpZmllcl9lbnYgKmVudiwgc3RydWN0IGJwZl9wcgogCQlmb3IgKGkgPSAwOyBpIDwg cHJvZy0+bGVuOyBpKyspCiAJCQljdHgtPm9mZnNldFtpXSA9IG5pbnNuc19ydm9mZihjdHgtPm9m ZnNldFtpXSk7CiAJCWJwZl9wcm9nX2ZpbGxfaml0ZWRfbGluZm8ocHJvZywgY3R4LT5vZmZzZXQp OworCisJCS8qCisJCSAqIGJwZl9wcm9nX3VwZGF0ZV9pbnNuX3B0cnMoKSB3YW50cyB0aGUgc3Rh cnQgb2YgZWFjaCBpbnNuLCBzbworCQkgKiBzaGlmdCBjdHgtPm9mZnNldFtdIGJ5IG9uZSBhbmQg Z2V0IGluc24gMCBmcm9tIHRoZSBwcm9sb2d1ZS4KKwkJICovCisJCWZvciAoaSA9IHByb2ctPmxl biAtIDE7IGkgPiAwOyBpLS0pCisJCQljdHgtPm9mZnNldFtpXSA9IGN0eC0+b2Zmc2V0W2kgLSAx XTsKKwkJY3R4LT5vZmZzZXRbMF0gPSBuaW5zbnNfcnZvZmYoY3R4LT5wcm9sb2d1ZV9sZW4pOwor CQlicGZfcHJvZ191cGRhdGVfaW5zbl9wdHJzKHByb2csIGN0eC0+b2Zmc2V0LCBqaXRfZGF0YS0+ cm9faW1hZ2UpOwogb3V0X29mZnNldDoKIAkJa3ZmcmVlKGN0eC0+b2Zmc2V0KTsKIAkJa2ZyZWUo aml0X2RhdGEpOwotLSAKMi41MC4xCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3Rz LmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5m by9saW51eC1yaXNjdgo=